I was just browsing ebay for a variety of things, but mostly looking at what macbook pros were going for. I noticed many of the auctions showed winning bidders with strange user names. They all seem to begin and end with a letter but they have three asterisks in the middle. For example bidders will have names such as a***f or r***b. Is this a sure sign of a scam, or a security procedure by ebay to protect users from scammers? I haven't been on ebay for a while, so I may have missed an announcement when they started doing this.