So if we consider a virtual undefined space that doesn’t tangibly exist like the internet an area of trade the limitations are… what?
Also from the little experience I have I believe your example is incorrect. A friend of mine who owned a coffee shop was being threatened with legal action by another one location coffee shop with the same name… half way across the country. My friend was consulting legal professionals and the implication was they had priority on the name. Of course maybe my memory or interpretation of the event is incorrect.
Then there’s the insanity of how often larger companies like Chic-Fil-A sue someone every time they use the words “Eat more” in a product or promotional campaign. No matter how small the company and how limited the scope of its reach.