The following link is an example:
Why was it migrated to DBAs site? I think that at this time such questions get more exposure on stackoverflow. As such, they have a much better chance to get relevant answers.
I am not trying to make a blanket statement not to move anything. Some questions clearly belong here. Some other ones clearly belong over there on stackoverflow. The question I provided a link for is probably in a grey area.
I just think that developers probably need more education about concurrency than DBAs, because concurrency-related changes on the application side can have a huge impact on the database performance. As such, this particular question might help more readers if it is on stackoverflow. I might be wrong, of course.
Also I think the name of this site might be a show stopper for developers - many developers are not really likely to read answers on DBA's site.