All sorts of security issues with kids chatting on an open forum worry me. Letting people know when you're going on holiday etc. People can get a pretty good idea of empty houses or if parents work during the day. Thieves and the like would love finding somebody they could get inside info on. A bit like this Bar. We are all much more open in here than we would be on an open forum. Kids just dont realise what they are giving away as they chat to friends if anybody can access it.
Bullies from school and the neighbourhood can be shut out too. One boy from up north a bit got a bit nasty with Luke and a few others, calling them wankers or faggots or something. The kids all locked him out and suddenly he had no friends to chat to. He actually had to pull his head in and say sorry with no parent even having to do a thing. Best way I have ever seen a bad attitude dealt with. He was older and bigger than the rest and got put nicely in his place no trouble. We are remote and the local kids really rely on Bebo.