This is all "academic" now anyway, since R'osity sanctioned the posts, just as they did in the post PJF pointed out (Same Mod too):

"98. Re: DAZ Studio by Lyrra on 11/23/02 05:08
...
Non poser related? it uses poser stuff doesn't it? that's vicki 3 in there, right? I think it's closer to topic than some of the posts I've seen today :)"

AFAIC, I received my answer when Lyrra made it clear that R'osity does not view this as an "advertisement". Whether I agree or not is immaterial. Just expect more of the same when other Merchants/Vendors claim they are "only showing off Poser's potential" by displaying their MP items in a forum.