Problem is, the only way to ensure this, would be to have some sort of authenticity verification. Otherwise, I can simply just use someone else's name which could cause a boat load of issues.
If it was to be authenticated against your personal information (In the US we could use our Social Security Numbers), but this also makes it incredibly easy for people to track you down for malicious reasons.
Trust me, those who know me, know I am all about personal accountability on the internet. But there really is no secure way to do this, that won't allow people to easily find where you live, and do horrible things to you if they feel like it. I've discussed this at length on these forums on a few occasions, and no one was able to think up a way to make this happen, without endangering innocent people.