Mr Moderator when are you going to realize that there is one...

Mr Moderator when are you going to realize that there is one particular poster who is inciting/annoying other posters/readers into absolute despair. Putting this particular person on ignore doesn't resolve the issue as I am able to read every other person's comment of despair. Surely, when an agenda becomes so clearly obvious that the Moderator has a duty to disable a particular ID to a particular stock/company permanently. Be fair for crying out loud...