Does your account have been compromised in the past or you think you need it in the future for a verification? Are you trading with other users here especially lending some BTCs? Those are just least of the important ones you can count in this forum. Yeah, you may think it's useless but do you know of other active communities like this forum? That thread I find it helpful because one day if I'm away from this forum and then users start to wonder I just recently woke thinking I've been hacked or something similar like that then I just use that thread for a verification. I don't know how you define useless but I think that's unnecessary calling it like that.
About account compromise, it is safer to have two seperated security methods: One for the account (with very strong password and secure the password), two for the bitcoin wallet is used to sign a message to prove ownership of the account.
To 'illegally' do a trade with you: there are two things hackers have to do and get access on: hack your forum account, and steal your wallet. If you store your account details (username, password) in one place, and store your wallet backup in another place, it is nearly impossible for hackers to hack both of them and can start a scam trade.
