Please don't take this the wrong way but is this site really a good idea?
I'm not sure what the history is with you 100% but actively promoting that you used to be bullied and aren't any more is just asking for trouble. The internet is full of trolls and losers who will take their first opportunity to put someone down and you're just crying for them to attack you. (I'm sure that's not what you want.)
Personally I'd try and keep it low key for campaigning etc and if you fancy doing it then feel free too. Maybe a group on Facebook or something like that?
Also to add my own personal opinion for the sake of it. You will never ever ever stop bullying in real life it will always happen. People don't get bullied for no reason. The best approach would be to better equip those who are bullied to change to become stronger rather than training bullies to not bully. (that won't ever happen.)
Good luck with your campaigning and no hard feelings against you but it's just my opinion .
I know that I will never stop bullying and there are various other organisations out there who do the same as me! However every little bit helps... Letting others know help is out there and is private and confidential and won't get into trouble for it. There are now tougher penalties being brought in for offenders, including fines and prison sentences so thins are looking up.