I have no idea if any of the other members have done stuff like this (probably have though), but Harry cried because people were saying shit about him over the internet and apparently Niell cried because a group of girls said he shouldn't be in One Direction.
That's pretty pathetic if I'm honest.
People in the music industry have to face the remarks they get, it's a dog eat dog world. If you're so easily brought down by what people you don't even know say then may I suggest you stop being such a pathetic bastard and toughen up or get out of it?
Hopefully they'll toughen up, if they're still around after a few years, usually bands like them are forgotten once the X Factor gets another bunch of bubble gum boyband sods.