Ad can be cancer for sure. But having one here and there I don't feel is a bad thing personally. I know it's being used to support the platform I'm using and increase the value of the asset I hold. Thus to me it's ok to have them there.
I do like the idea of promote I'll need to check that out some and I did see an option to trade right on your platform from the looks of it. Curious to see what you all create and do next!