Thanks Kristoff.
When I first mentioned one of our products, RPS 3D PDF,on the Google Groups forum the post was removed by a moderator. (It was not an advertisement - but rather a request for Beta Testers. Although, clearly my hope was that some SketchUp users would finds it useful and want to purchase it.)
At about the same time some SketchUp users started posting comments, questions, etc. about the same product on the SU Pro forum and I received a Private message from a moderator asking that I not use the SU Pro Forum for customer support for Render Plus products. At that time we set up a separate forum for Render Plus.
However, I suspect that SketchUp users trying out the Render Plus products would prefer to post questions and get responses on the forum they already use.
SketchUp users are invited to use the Render Plus Forums, but if they want to post questions here, I will plan to respond here unless I am advised otherwise.
Al Hart