a Question

[koenwi]

I think when you promote it enough on the right places, that it works.
But I also don't know or there are people waiting for that.

If you want use 1 of the 2 domains for adult forum hosting, I would choose 2match. (for the reason you said)
I found that Resellerqueen is more for normal hosting. ... (And 2match more for a dating site) ... But's that my opinion :P

And you say that you are not realy a host, so it is possible for you? But in that case, it must be allowed of your host....
(Likely it is, but I found the link not obvious)

Maybe try a very simple site and if you get people you can spend more time. And as it isn't a succes, you haven't lost to much time and you can still try something else? :)