At one time, Matchdoctor.com, created in about 2001, was a decent free dating site. Initially, before the social networks became popular, they competed against other free dating sites such as PlentyOfFish.com, Cupid.com, etc., but steadily lost participation to now about 30 or so members online, which about 20 of those are scammers/fakes using the free services ... as can be expected.
It is anyone's guess as to why Matchdoctor now sits at the very bottom of traditional free dating sites, but my experience is because of their gross inconsistency and but one biased Moderator who claims to be "god."
Now, the place is not only rampant with scammers and fake profiles, but participation in the forums is biased, bigoted and subject to not only the whims of a buffoon for a Mod, but the acceptance is dependent on a dozen or so resident psychopaths ... that with thousands and thousands of posts, scheme with the resident Mod to run anyone new off.
And maybe the worst part, is having one's personal information passed around behind the scenes... so beware and do not reveal anything that can connect you to the stalkers and scammers that are waiting for you on MatchDoctor.com
In summary, I would not recommend Match Doctor to a friend.