Sure, I can archive all my posts, but then what's the point of posting anything on that platform.
It's much better to have your own website or blog that can't be censored or restricted.
In theory this could bring new genuine members to register in forum, because a lot of young people never even heard about bitcointalk forum.
Finally someone who hit the point, I was thinking I had explained it wrong and that the message had not passed. Possibly you could also try to insert the trust formula and as already anticipated the verification from the forum, so who if a user is serious why should he be banned or lose messages? But even here on the forum they can delete the messages so I don't see many differences.