Whatever the rules are:
I'm fed up with the same guy pushing his products, day after day.
But why is this a problem to you?? :dontknow:
Surely, if you can tell us it's always the same guy then you are clearly recognising his username; and if that's the case, why not simply avoid reading any threads started/Adverts posted by that user?!?

Or if you prefer, you could even add that Sponsor's username to your ignore list, and then you won't ever get to see any of his posts again.... well, not unless
YOU choose to open one (or more?) for whatever reason?!?
But the Sponsors
ARE helping keep this place alive, and while ever they continue to do so within the bounds of the Forum Rules & their agreement, I'd guess they are pretty likely to remain as mainly appreciated fixtures.

hyea: Besides, there's obviously still
some users who are interested and getting some benefits from those adverts/his posts, otherwise there'd be no reciprocal benefit to the Sponsor and so no reason to continue posting, don't you think? :dontknow:
All of which really leaves the ball entirely in your court oldgoat - you can learn to live with the Sponsors Posts/Adverts; you can choose to ignore his threads/posts whenever you see them on an as occurs/individual basis; or you can add that username to your ignore list and so not even get to see any of them in the first place.

Whichever choice you make from those is entirely up to you! :thumbup: