Welcome to the board!
You're right that the name of the board was a good marketing move. It seems monolithic, official. But the board clearly says that this is a "Jehovah's Witness discussion forum," which it really and truly is. The only reason active Jehovah's Witnesses are so few around here is that their organization forbids them to be here. It's ironic, really.
I can give you that the name of the board might at first glance be different than what you might expect. Then again, if I went to mormon.com and found that it was mostly populated by ex-Mormons, I don't think I'd feel particularly deceived. I'd probably say my hellos, congratulate them on snagging a great name, and be on my way to the official site if I were interested in getting there.
Another point to consider is that the Watchtower Society has chosen to represent itself as "Watchtower." They had the chance years ago to purchase the jehovahs-witness.com domain. They chose not to. Their brand name is Watchtower. It would have been a simple and extremely inexpensive matter to also own jehovahs-witness.com and redirect it to their main domain, but they chose not to. That's fine, that's their choice. But it certainly means that anyone else with an interest in the domain can buy it. And that's what happened. And this site clearly has a valid stake in the name. It's not like we're selling tennis shoes here.
Finally, I wanted to offer some thoughts with regard to your suggestion that supposed misrepresentation in the name of this site is similar to the misrepresentation by the Watchtower in (for example) the Blood brochure. There is a world of difference between choosing a name that is likely to generate good traffic for a web site, and publishing material that deliberately quotes so as to make it appear that external sources are saying things they do not. The Watchtower Society communicated specific misrepresentations with intent to deceive. (Intent is obviously hard to prove, but in many cases the Society edits words out of the very same sentence that they are quoting in a way that significantly alters the meaning. It is hard to see this as anything other than deliberate deception. No one is stupid enough to do this accidentally, and if they are, they certainly shouldn't be writing for "God's Channel.")
Anyway, welcome again to the board! Hope you stick around.