I just noticed this in the Haiku thread that was recently resurrected. I don't know the name of this type of spam/scam, but I'm sure you do:
Online Proxy Checker, proxy checker, proxies checker, check proxies list, online checking proxy, check free proxies, check free proxylist, proxi checker, proxy checking, proxies list cheker, socks proxy checker, check socks proxies, socks 5 proxy checker, socks 4 proxy checker, HTTP proxy checker, socks proxy check, online check socks proxies, check list of proxies
I didn't re-copy the link that comes at the end of that message. Feel free to delete this after you take care of it.