And no, I don't think it's scam - however it would be interesting if this spammers are paid or if they're doing it on their own.
I know I can't prove this, so there's probably no point in saying it - but we don't have a cent for marketing. The two developers we have (Bryce and I) are funded entirely by community donations, which don't amount to a lot at the moment, and we're not big holders of XSPEC. After funding the two of us there's nothing left to spend on marketing. And honestly, even if we had money for marketing, it wouldn't be given to people to shill here. I hate that kind of thing.