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Enter any two safe-for-work communities. We’ll place their public descriptions, members, growth, topics and collected rule titles side by side — instantly, from data we already have.

r/UnresolvedMysteries vs r/TrueCrime

Side-by-side using public descriptions, members, growth and rule titles from SubMouse. Missing fields show as n/a. Adult communities are excluded.

Swap sides New comparison Related to r/UnresolvedMysteries Related to r/TrueCrime

True crime room vs unresolved mysteries room

r/TrueCrime’s longer public description was n/a in our snapshot; collected rule titles emphasize no personal information or suspect-naming, no glorifying criminals, and limits on memes and sensational titles. r/UnresolvedMysteries likewise had a thin public description in our snapshot; its rules focus on unresolved cases with posting and commenting guidelines and a bar on very recent murders/disappearances.

In our directory, UnresolvedMysteries is larger (about 4.5M, rank #206) than TrueCrime (about 3.4M, rank #307). Activity samples show UnresolvedMysteries posting more often (~9 posts/day vs ~4). TrueCrime’s sample mixes text with some images/video; UnresolvedMysteries’ sample is essentially all text with flairs such as update, disappearance, other crime, request and John/Jane Doe.

Rule titles underline the split: TrueCrime bans personal info/stories/suspect hints, glorifying violence, advertising and memes; UnresolvedMysteries requires staying on topic, blocks undocumented personal anecdotes as “mysteries,” and restricts cases from the past six months.

  • Choose r/TrueCrime for true-crime discussion under its no-doxxing and no-glorification rules.
  • Choose r/UnresolvedMysteries for open cases and unexplained events under its unresolved-case and recency rules.
  • Both sit outside the current Top 100 cut; neither is a place to investigate private individuals.

Written comparison based on public descriptions and rule titles · updated 2026-11-07.

r/UnresolvedMysteries

No public description in our directory.

Members
4.5M
7-day growth
n/a
Posts/day
9.4
Directory rank
#206
Created
n/a
Submissions
Text posts

Sample mix: text posts 100%

Topics: Paranormal

Rule titles (short names we collected)

  • Stay on topic
  • Posting Guidelines
  • Commenting Guidelines
  • Name: No murder/disappearances from the past 6 months
  • Undocumented / personal / anecdotal "mysteries" are not allowed
  • User involvement in cases
  • Personal Information & Witchhunting
  • Updates, Meta-Threads and Reposts
  • Site-wide Rules and Reddiquette
  • Moderator's Discretion and how you can help us
  • No advertising.
  • Don't accuse persons cleared by LE or not officially named as suspects.

Open r/UnresolvedMysteries on SubMouse

About this community: r/UnresolvedMysteries (#206, about 4.5 million) is a rules-heavy true-crime/unresolved-case discussion room (catalogue title/description empty in this snapshot). Collected rules ban recent (past 6 months) murder/disappearance posts, undocumented personal/anecdotal “mysteries,” witchhunts/personal info, advertising, accusing cleared or unnamed people, and cut-and-paste dumps; claims should cite sources; stay on topic…

r/TrueCrime

No public description in our directory.

Members
3.4M
7-day growth
n/a
Posts/day
4.1
Directory rank
#307
Created
n/a
Submissions
Text or links

Sample mix: text posts 49%, images 26%, videos 15%

Topics: True Crime

Rule titles (short names we collected)

  • No personal information, personal stories, or indicating suspects.
  • Don't Glorify Criminals or Violence
  • No advertising
  • Respect other users
  • No memes
  • No dehumanizing speech or frontier justice
  • No video posts / self promotion
  • Text posts guidelines
  • Rule 9 - No sensationalist titles
  • Rule 10 - Off-topic/moralizing/misogyny/sexism/racism
  • Rule 11 - No missing persons posts

Open r/TrueCrime on SubMouse

About this community: r/TrueCrime (#307, about 3.4 million) discusses true crime (description empty). Rules ban personal info/personal stories/suspect-pointing, glorifying criminals/violence, ads, memes, dehumanizing speech/frontier justice, video/self-promo, sensational titles, off-topic moralizing/bigotry, and missing-persons posts; text guidelines apply. Text/Image (~4.1 ppd).

Supported differences

Aspectr/UnresolvedMysteriesr/TrueCrime
Size
r/UnresolvedMysteries is larger in our directory.
 4.5M members 3.4M members
Posting activity (our sample) 9.4/day 4.1/day
Common post types in our sample text posts 100% text posts 49%, images 26%, videos 15%
Allowed submission type (meta) Text posts Text or links
Topic tags on SubMouse Paranormal True Crime
Selected rule titles (short names we collected) Stay on topic; Posting Guidelines; Commenting Guidelines; Name: No murder/disappearances from the past 6 months; Undocumented / personal / anecdotal "mysteries" are not allowed No personal information, personal stories, or indicating suspects.; Don't Glorify Criminals or Violence; No advertising; Respect other users; No memes

Rules and posting patterns we can verify

TrueCrime short titles include: no personal information, personal stories, or indicating suspects; don’t glorify criminals or violence; no advertising; respect other users; no memes; no dehumanizing speech or frontier justice; no video posts / self promotion; text posts guidelines; no sensationalist titles; off-topic/moralizing limits. Our sample mixes text with some images and video.

UnresolvedMysteries: stay on topic; posting guidelines; commenting guidelines; no murder/disappearances from the past 6 months; undocumented/personal/anecdotal “mysteries” not allowed; user involvement in cases; personal information and witchhunting; updates/meta/reposts. Our sample is text-forward with disappearance, update and Doe-style flairs.

Where this comparison comes from

Member counts from SubMouse’s safe-for-work directory (public descriptions were thin in our snapshot). Short rule titles and activity samples SubMouse collected. Short titles only.

Members and public descriptions come from SubMouse's safe-for-work directory (as of 2026-11-02 UTC); 7-day growth measured from 2026-10-26. Posts/day and post-type mixes appear when we have an activity sample. Rule lines are short titles, not the full sidebar. Directory rank is listing order — communities outside the current Top 100 open in the info tool instead of a full community page.

Comparisons we prepared

Hand-written explanations for pairs where the public descriptions and rules support a real distinction: