As assets are reviewed for acceptance, Id also think most people aren't going to be new to houdini if they are authoring. IMHO since HDA in general are more of a houdini thing than orbolt specific, maybe just bigger faq section of the differences and caveats from normal HDA authoring. I think alot of the stuff here in this forum and a few other places gathered in the faq with some screen shots would be ok enough for that.
I've been using the HDA mechanism for many years but get caught on a couple of caveats now and again introduced in Orbolt, but when I look search for them I'd rather have a central location than sift through the basics, thats already document.
When Im on the store Im definately looking at assets, after all it is a store and thats the product. I might be looking at other assets to make sure an idea doesn't overlap that I want to author sell, or maybe looking at what out there so next time I need it I'll now what can save time/money, or may be cruising out of boredom/curiosity – but definitely looking at assets and not people.
As far as connecting with offers – this forum seems like a good place for that to me