Sorry to hear that.  This is really terrible.

Personally, I hesitate clicking on external links from those so called 'Wiki' sites.

All I know is that Bitmain's official profile and signature here on the forums point directly to his (legit) official website, same goes true for their official FB, Weibo and Twitter pages listed in the 'About Us' section of their site.

I went to GoDaddy and did a WHOIS on bitmaintechs and found out it was registered/created on 2014-03-31.