Before the advance of social networks, Matchdoctor was one of the first free dating sites about the same time as POF. When the forums were introduced, the political and religious sectors were fairly robust and as can be expected, included plenty of disagreements.
Those with low intellect blamed these sectors for a declining participation, which was untrue... because when they finally convinced the owners to close these sectors, membership dropped to nothing.
In fact, many of those complainers are all that is now left in the ghost town they promoted and left to argue among themselves in the absolutely stupid and attacking blogs they continue to create.
Today, with maybe 50 people on the site at prime time that includes the typical scammers to a free and now hardly moderated site, it is not worth the time to fill out a profile.
While other dating sites survived and grew to mammoth size, like any other failed business, the demise of Matchdoctor lies on the shoulders of nobody but it's owners.
It is beyond the time to turn the lights out.