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There is a large list of Stack Exchange clones, but it is very hard to find thriving communities (ie. low spam rate, high answer quality and good answer rate).

I think that seeing how these communities operate could provide insights into other approaches for running a Q&A site. We would be able to see the effects of different policies without necessarily having to experiment with them ourselves.

What thriving communities are based on the Stack Exchange model?

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closed as off topic by kiamlaluno, Rosinante, Robert Cartaino Mar 18 '12 at 21:03

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MathOverflow isn't really a clone (it's still on SE1.0!) but it's probably one of the best successes outside of the network. – Jeremy Banks Mar 17 '12 at 13:15
ask sql server central seems to be doing OK AFAIK. – Martin Smith Mar 17 '12 at 13:18
Haha yes, Math Overflow is an amusing case, given the recent ruckus about "draconian moderation policies" here. – Cody Gray Mar 17 '12 at 13:23
@CodyGray: Yes, MathOverflow's moderation is as draconian as it gets. It seems to work for them, though. – Robert Harvey Mar 17 '12 at 16:32
Draw 3 cards for Magic the Gathering seems to be going quite well too. There may be a few other SE 1.0 sites that have managed to maintain an active community – Casebash Mar 17 '12 at 22:50
@CodyGray: And here is the draconian moderation again – Casebash Mar 21 '12 at 11:06

Openstreetmap (OSM) runs on a Q&A clone. In my experience, the quality of content seems to be poor in certain areas.

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GIS is actually an official SE site, not a clone. – BinaryMisfit Mar 17 '12 at 13:05
@Diago: I know, I meant to say it's the nearest SE site to OSM that is official. Although GIS doesn't have as many OSM questions. – Ambo100 Mar 17 '12 at 16:16

Fedora - 1236 questions

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"First time here? Check out the FAQ!" No link to be found :D – Ryan O'Hara Mar 17 '12 at 14:05
@minitech: The FAQ link is at the bottom. (Gah, why does nobody read the FAQ?!) I must say, their "search" box is much more inviting than the one on SO. Nice and obvious and autofocused. – Wesley Murch Mar 17 '12 at 16:40
Looks like Askbot. – user164291 Mar 17 '12 at 19:29
Nobody votes on questions there. – Verbeia Mar 17 '12 at 20:48
The really nice thing about that search box is that it doesn't autoexpand... – Cody Gray Mar 18 '12 at 7:26
@mog And... I just learned that SO has a search box. – Tortoise Apr 10 '13 at 1:27
@todofixthis - Note the "Powered by Askbot" notice in AskFedora's footer... – Tortoise Apr 10 '13 at 1:28

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