This got a little sidetracked.
However to put the record straight, what @mrspuf said is correct. You can check the rules here : Updated MPSocial Forum Guidelines and Rules [2020]
You are not allowed to funnel traffic outside of the forum. This is a general rule with most forums, not only here.
As for this, not they don’t however they do have a sales thread here which can’t be said about other forums 