The check-in AC was one of the main reasons I apped, especially coupled with IC consequences for IC actions. Going to something with comment counts is the last thing I'd want, it's just unnecessary stress in my opinion. On the other hand, I worry that you've put a lot of extra stress on your heads with all of option A's stipulations. Especially since the playerbase hit cap so quickly!

All that said, my vote is with B as the best compromise.