Francis Drake
Even if you change your name, your user ID stays the same and the stalkers can still find you easily.
I would suggest creating a completely new account and transferring your wealth over to the new account.
You should also make sure that you don't hang out in the same spots as your stalkers. They might recognize your writing style or wording choices and figure out your identity.
They really are not stalkers...just an ex-boyfriend pissed that I moved on and found new love other then him. Oh and his 'posse' that is what he calls them...but have to go to church then a wedding...see everyone afterwards.