[kbullaughey]

According to Reddit's User Agreement user content:

"You retain the rights to your copyrighted content or information that you submit to reddit ('user content') except as described below."

And the exceptions just state that Reddit has a perpetual irrevocable worldwide license.

So it seems like there's no default license and others don't have any automatic rights to use the content. Does this assessment seem correct? In practice, it may not be a big problem, particularly for academic research and such, but I'm guessing there are some uses that might cause problems.

[hackcasual]

Good find, I think I got reddit confused with stackoverflow or wikipedia. If there's no clear assignment of copyright to api users, I would imagine that would be problematic for 3rd party app makers.

[hmsimha]

Isn't this true only if the 3rd party apps are saving the data and/or redistributing it? Apps should be able to request data from reddit just as a normal user would through their browser, since reddit has permission to use (and serve) that content.

[JeremyBanks]

Nit: I don't think copyright assignment is the correct term here. That refers to transferring the ownership of the root rights to the material, but you're just referring to granting specific rights under a license.