This will probably be deleted, but there was a thread yesterday where the op was universally told she was being unreasonable and she asked for the post to be deleted as she had "some concerns" 
In the middle of the night she sent me a snarky private message but does not receive private messages herself apparently. This is my first snarky pm so I am new to this but surely this means some posters can send what they want without giving someone the opportunity of replying which at best is plain arrogant but at worse could mean they could send all sorts of nastiness. Is this what happens and should it be allowed?