So in case anyone doesn't already know, and it seems like a lot do not, anything you do not own you do not have control of. If you sign-up to a forum, that forum most likely keeps everything. What good business doesn't? People know that if you put something into google's system, they have it, but don't realize it happens everywhere? get off the internet.
Maybe for now, but the right to be forgotten is gaining legal ground
http://en.wikipedia.org/wiki/Right_to_be_forgottenYou forget that ANYTHING put on the internet lives forever. Right to be forgotten is a joke. The only time it could ever hope to work is when the entire internet is totally controlled, and that will never happen until someone takes it down and it needs to be rebuilt. Remember kids, the entire internet can be removed by getting to the correct 8 servers at one time and there are a few wandering around with a code to do it, but they built it and don't want to ruin it.