Without bringing up anyone's banning, who we want to hide or anything other than the possibility of Justine changing her mind and the feasibility of Tech being able to do it?
Main argument: will make holes in threads.
Counter argument: no more than a thread of a thousand deletions
Supplemental argument: You will still be able to see what others are saying to the hidden poster which could be even more annoying or confusing.
Counter argument: Take a look at how Delphi Forums does it. You have the option of seeing a hidden person's post if you want to.
Final argument: Total paranoia from people thinking people have hidden them.
Counter argument: there isn't one. nothing can be done about personal paranoia