r/IAmA vs r/AMA

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/IAmA Related to r/AMA

IAmA room vs AMA room

r/IAmA hosts large Ask Me Anything interviews. r/AMA is a smaller general AMA community.

In our directory, IAmA is larger (about 22.5M, rank #30) than AMA (about 1.9M, rank #589). Activity samples show AMA posting more often (~80 posts/day vs ~3.3). Both samples are mostly text. IAmA flairs include Crosspost; AMA shows Restricted Post, *VERIFIED*.

Rule titles: IAmA: All posts must contain proof; Topics must follow IAmA guidelines; Requests belong in /r/IAmARequests; Top-level comments must ask a question; Do not ask for personal favors from an OP; No abusive or harassing comments; Please See Our FAQ. AMA: Harassment/Hate/Bigotry not allowed; Posts must be AMAs; AMA commenters must ask questions; AMA posters must answer questions in their threads; Post Quality; NSFW content is prohibited unless prior approval is obtained; Long and Controversial Opinions; No fake stories.

Choose r/IAmA for high-visibility AMAs under its proof and hosting rules.
Choose r/AMA for smaller or niche AMAs under its community rules.
IAmA is far larger in our directory.

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

r/IAmA

IAmA

I Am A, where the mundane becomes fascinating and the outrageous suddenly seems normal.

Members: 22.5M
7-day growth: +806
Posts/day: 3.3
Directory rank: #30
Created: May 27, 2009
Submissions: Text or links

Sample mix: text posts 100%

Rule titles (short names we collected)

All posts must contain proof
Topics must follow IAmA guidelines
Requests belong in /r/IAmARequests
Top-level comments must ask a question
Do not ask for personal favors from an OP
No abusive or harassing comments
Please See Our FAQ

Open r/IAmA on SubMouse

r/AMA

Ask Me Anything

Have anything interesting or unique to share about yourself? Let people ask you anything.

Members: 1.9M
7-day growth: +3.6K
Posts/day: 80
Directory rank: #589
Created: Aug 10, 2009
Submissions: Text posts

Sample mix: text posts 97%, links 3%

Topics: Explanations & Q&A

Rule titles (short names we collected)

Harassment/Hate/Bigotry not allowed
Posts must be AMAs
AMA commenters must ask questions
AMA posters must answer questions in their threads
Post Quality
Long and Controversial Opinions
No fake stories

Open r/AMA on SubMouse

Supported differences

Aspect	r/IAmA	r/AMA
Public focus (from each community’s public description)	I Am A, where the mundane becomes fascinating and the outrageous suddenly seems normal.	Have anything interesting or unique to share about yourself? Let people ask you anything.
Size r/IAmA is larger in our directory (about 11.9×).	22.5M members	1.9M members
Posting activity (our sample)	3.3/day	80/day
Common post types in our sample	text posts 100%	text posts 97%, links 3%
Allowed submission type (meta)	Text or links	Text posts
Topic tags on SubMouse	n/a	Explanations & Q&A
Selected rule titles (short names we collected)	All posts must contain proof; Topics must follow IAmA guidelines; Requests belong in /r/IAmARequests; Top-level comments must ask a question; Do not ask for personal favors from an OP	Harassment/Hate/Bigotry not allowed; Posts must be AMAs; AMA commenters must ask questions; AMA posters must answer questions in their threads; Post Quality

Rules and posting patterns we can verify

IAmA short titles include: All posts must contain proof; Topics must follow IAmA guidelines; Requests belong in /r/IAmARequests; Top-level comments must ask a question; Do not ask for personal favors from an OP; No abusive or harassing comments; Please See Our FAQ.

AMA: Harassment/Hate/Bigotry not allowed; Posts must be AMAs; AMA commenters must ask questions; AMA posters must answer questions in their threads; Post Quality; NSFW content is prohibited unless prior approval is obtained; Long and Controversial Opinions; No fake stories.

Where this comparison comes from

Public descriptions and member counts from SubMouse’s safe-for-work directory. 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.