I can see the obvious problems with a repost bot reposting things without contemplation but one thing I would like to point out is that the comments in the AITA threads are often not likely to reach OP anyway. They get into the thousands and OP doesn't read all of them, of course. I think they act more as a hypothetical discussion amongst the commenters, primarily. Which I think is really interesting on its own. I think discussing even hypothetically who would be at fault in such a scenario (especially considering many of these stories are obviously fake to begin with) has become the main point in the main attraction of the subreddit.

That said, I don't think we need bots. Not for that kind of thing. I feel like anyone can post hypothetical scenarios in many communities, and we'd get good discussions and insights.