To be fair - you have now idea what knowledge I possess or not. And the burden of proof is on you. I asked a simple question. The comments you made about trademarks - is that something you researched or read somewhere. Or did you make it up. It's ok if you made it up. In fact, I'd respect you more for admitting so. I think your thoughts are quite common.
I owned and ran a marketing firm in Seattle for a few years, and we filed several trademarks for our clients as well as ourselves. Prior use applies to patents, not trademarks. Someone can use a term all they want and advertise it all they want, but if it is not already trademarked anyone can file a trademark on a term used by someone else. You may be confusing patent rules with trademark rules.