About r/UnresolvedMysteries
Community guide
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 with posting/commenting guidelines. Text (~9.4 ppd).
Documented cases only
Undocumented personal anecdotes are out. Fresh murder/disappearance cases from the past six months are barred by name rule.
No witchhunts
Personal information and witchhunting are banned; don’t accuse people cleared by law enforcement or not officially named. Source claims in comments when possible.
Practical pointers
Follow posting/commenting guidelines; no advertising or cut-and-paste; updates/meta/reposts have their own constraints.
SubMouse Editorial
It sits just behind r/instant_regret (#204) and ahead of r/Design (#207) in our ranking.
What sets r/UnresolvedMysteries apart
Compared with other large communities, r/UnresolvedMysteries leans heavily on text posts (100% of recent posts; the typical Top 100 subreddit sits at 34%). It is a discussion-heavy community, with about 34.5 comments per post over its lifetime versus a Top 100 median of 14.0. Growth has more or less levelled off (0.00% since Oct 29, 2026), which is common for very mature communities.
Subscriber growth
Between Oct 29, 2026 and Nov 2, 2026, r/UnresolvedMysteries stayed flat from 4,505,355 to 4,505,355 subscribers. The chart uses our weekly snapshots (2 so far), so it gets longer every week.
What r/UnresolvedMysteries talks about
Looking at the titles of 82 recent posts (Oct 29–Nov 5), the words that come up most are “doe”, “case”, “jane”, “found” and “fbi”. Other frequent themes are identified, unsolved, hazel, head, missing and voynich. Recurring phrases include “jane doe”, “voynich manuscript”, “hazel leota” and “leota head”. By format, 100% are text posts.
Popular post flairs: Update (9), Disappearance (7), Other Crime (5), Request (4), John/Jane Doe (4), Unexplained Death (3).
Activity and best time to post
r/UnresolvedMysteries gets about 9.4 new posts a day. The public archive holds 95,097 posts and 3,283,923 comments in total, about 34.5 comments per post. Last week the busiest day was Monday (20 posts) and the quietest was Saturday (5). Posting peaks around 15:00 UTC and is lowest around 02:00 UTC.
Rules of r/UnresolvedMysteries
The moderators of r/UnresolvedMysteries list 14 rules. In short:
- 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
How to join
Open reddit.com/r/UnresolvedMysteries and press “Join”. Read the community rules in the sidebar before you post: every subreddit is run by its own volunteer moderators.
Frequently asked questions
How many subscribers does r/UnresolvedMysteries have?
r/UnresolvedMysteries has 4,505,355 subscribers (Nov 2, 2026), which makes it the #206 safe-for-work subreddit in the SubMouse ranking.
How active is r/UnresolvedMysteries?
Moderately: r/UnresolvedMysteries gets about 9.4 new posts a day (average of the last four weeks). Over its lifetime the archive counts 95,097 posts and 3,283,923 comments. In a sample of 82 recent posts we counted 49 different authors.
When is r/UnresolvedMysteries most active?
Based on post counts from Oct 29, 2026 to Nov 4, 2026, the busiest day was Monday and the quietest Saturday, and most posts arrive around 15:00 UTC, with the fewest around 02:00 UTC. More posts also means more competition, so a quieter hour can help a post get noticed.
What is r/UnresolvedMysteries about?
r/UnresolvedMysteries is a large Reddit community. Recent post titles often mention doe, case, jane, found and fbi. Most posts are text posts (100%).
Is r/UnresolvedMysteries safe for work?
Yes. Reddit does not mark r/UnresolvedMysteries as an 18+ (NSFW) community. SubMouse lists safe-for-work subreddits only.
How do I post on r/UnresolvedMysteries?
Join the community on Reddit first, then use “Create post”. r/UnresolvedMysteries accepts text posts only, with galleries enabled. It has 14 posted rules, starting with: “Stay on topic”; “Posting Guidelines”; “Commenting Guidelines”. Moderators remove posts that break the rules, so read them in the sidebar before posting.
Which communities are like r/UnresolvedMysteries?
Communities with similar topics include r/nosleep (18.2M), r/nonononoyes (4.3M), r/marvelmemes (4.3M), r/woahdude (4.3M) and r/running (4.3M).
Stats from public data (data updated Nov 2, 2026; activity, rules and archive totals via the Arctic Shift archive, Nov 6, 2026). Point and comment counts are archive snapshots and can be lower than on Reddit today. SubMouse is an independent directory and is not affiliated with Reddit or the moderators of r/UnresolvedMysteries.