I've noticed that Community is earning reputation from accepting answers:
Digging a little deeper, I realized all these posts have been migrated from some other SE site. So it looks like instead of having the OP earning +2 from the accept, Community gets it. For example:
This question was accepted presumably some time after it was answered, ie: after Nov 25th. But if you look at the OP's reputation tab they don't seem to be getting the +2 accept bonus. Community is getting it instead.
PS: I noticed a pattern of closing questions related to Community earning reputation being closed as a dupe of this question, but I think this is different.