For lack of a better way to convey my point here, there is nothing "doctrinally sinful" about someone visiting a website that might also be used by one or more apostates, no more so than that it would be "doctrinally sinful" for you and I to both enter the same restroom to relieve ourselves and/or to wash our hands at a baseball stadium (like the one here in Los Angeles, California, that they call "Dodger Stadium"). Restrooms are generally provided to the public; one doesn't normally need permission from anyone to use them.
Also, while it is not my purpose to socialize with apostates, I am aware that some of the folks that use this forum are apostates, but perhaps you will remember learning that elders speak to disfellowshipped persons all of the time, privately for the most part, and you know what son, it may turn out that I'm going to engage some here that might be apostates and I'm going to sleep well tonight since, unlike you (and many others here that like to troll those of us here that are new on this board), I'm taught my Jehovah and I understand that neither counsel or admonitions are dicta. If you do not understand what I'm saying to you here, maybe someone a little older and/or with more experience in life (and common sense) will take a moment to lay it all out for you, but I don't like being impliedly trolled. Grow up.