It took awhile, but I found a way to complain - www.msnbc.com/contact has an online form for reporting a technical problem with their site. I chose “report a malicious user” as the problem I encountered. Which pretty much sums up Mr Bashir - except they misspelled ‘loser’.
Thank you for your efforts and for reporting them back here. Spelling is a skill requiring higher brain functions. Can’t expect that from lib jornolists. ;-)