I don't think they are related but who knows. Its been on about six different items, more but a couple ended up selling and the messages were more slightly annoying than blatant time wasters and bidding retractors. It is odd which is why I posted about it. I think the one guy I blocked must be a serial nuisance on ebay as I remember the name from a sale I had listed over a year ago. He didn't buy it as I blocked him back then. These buyers are from mostly different states.