Yes it's a fact that obese people smell worse than fit people, so if it was a marathon runners convention and everyone actually bathed daily, I'm sure going without deodorant wouldn't be an issue. Too much fucking might be an issue if the majority of the women aren't on hormonal birth control.

But I think the issue with anime conventions isn't lack of deodorant, it's thinking a shower is something you take every 4-7 days, and 'eww don't touch your buttcrack to clean it, that's nasty!'

I may get flack from the twox crowd for this comment, but talking to my fiance was like talking to a guy when she got off hormonal birth control. Conversation is just... chill now.

That's probably the next big "oops, we fucked up bad the last 50 years, but men's birth control is hard!"