Where did you get a 'death threat' the other day?
On your 'reputation'?!!!!
If so: who removed it? And how did they remove it?
As far as I'm aware, no user or moderator can do this, the only person with that access within vBulletin would be the site proprietor. Did you alert the Moderators to this threat 'the other day'? Was it similar to the one you have been disturbed by today?
It simply isn't possible for a 'reputation remark' to be left, then removed. Only someone with high-level access could do this.
Yours sincerely and with rising concerns about the data-protection and integrity of this site: