I've always been against the whole commenting on the host's stories as a form of entrance fee, especially with the way contests are now, because the host hasn't really held up their end of the deal yet, so they're basically getting comments for nothing. I shouldn't have to bribe someone to let me enter their contest
Either way, I do not like entrance fees
I use contests because a.) I was inspired by the prompt b.) I use the deadline to make myself get something written instead of procrastinating
and c.) to get feedback for my stories if I win. I don't really care how my writing stacks up against anyone else's because a contest doesn't
really show that, it usually just shows one person's taste. If a contest doesn't get judged, I'm not getting any feedback (I only join contests that give comments for every entry and that offer comments as an option for the winners), and that's usually the main reason I'm entering in the first place.
I'm in the mindset that I'm open to anything that will get people to complete their contests, since I feel like that is the biggest problem with contests, but I don't want that to come at the expense of me being cheating by losing points or something of that nature.