Well, to be honest, your post reads like you are "trying to be a dick" and I don't say that to be inflammatory. Just honest.
I consider custom tags something to be respected and left for the use of the creator. It's not a matter of the legalism you are going on about in your post. It is about courtesy and respect.
If you create a custom tag for your product, it would be really nice to find posts directly related to the tag in the tag. In fact, I know of people who have been recently looking to find your product and it would have been nice had they been able to locate a tag and find posts about it.
I suppose your right on my tone. As for the legalism, it is relevant if Steem ever wants to be a major player in the social media scene. The rest is just my rant / insights about things I care about so I slightly veered off topic.
I also have come to understand the custom tag thing, which is why I plan on using my own tags and or generic tags from this point forward.
If I where to create a custom tag I would be thrilled to have people use it. Yes, even @berniesanders
Yeah I bet you'll love it to death when your own relevant content becomes buried in a mound of garbage and irrelevent posts. Unless of course you are referring to bernie giving a review of your product? Be careful, any review I've ever seen bernie give is usually pretty brutal.