@OP, why are you not changing your number if you are receiving the calls on your phone? Is it impossible to let everyone with that number know you are changing it? This will get rid of the issue.
I don't know the thread OP seems to be talking about but I think he's getting threat base on the thread itself which is why he's trying to get it deleted by a mod.
Although changing number, address and every connected identity could solve the threat, but I think something might be attached to the thread which is why he need to take the thread down probably a reference from other sites or something smilar/related , apart from these changing every related details seem to be the right option here..