Consider your favorite conference(s). Do you think they're accepting too many papers, too few, or just right? (With SIGCOMM decisions out, STOC/EC/CCC coming up, etc., it seems like a timely question to ask.) Keep in mind if you think conferences should be accepting more papers, it means longer conferences or more parallel sessions. When thinking about adding papers, there are different levels you could imagine -- 10% bigger, or 50% bigger.
I'm sure with the SIGCOMM acceptances/rejections out some people think that SIGCOMM could accept more papers. (33 were accepted; there was a nominal target of around 36.) I'm sure some other people like the bar to be kept high. Increasing paper acceptances by about 10% would get us to the nominal target, a minimal change. Increasing paper acceptances by about 50% might change the nature of the conference non-trivially, but I'm sure there are arguments on both sides about whether that would be a good or bad thing. 45-50 papers is still not a huge conference.
Since we're talking across multiple conferences, rather than do a blog poll, please comment in the comments.