I do not think so, then the rating would have looked more attractive, I dont think that the author had intentions to make a hidden advertisement.
But I can almost surely say OP is trying to advertise. Otherwise, it doesn't make sense to mention a scammer here. I would appreciate a scammer free list.
It is impossible to keep on working all the projects at a time and really it is a very tough job to manage all those bounties at a time. Really very tough Job to manage more than 45 bounties because some we might confuse for posting the links.
There are people who maintain hundred of bounty campaign. Anyway, I don't encourage. It's kind of wasting time in my opinion.