There's a difference between Björn (the name) and björn (the animal).
Capitalization gives additional context in this case, if it were in the beginning of the sentence though, then one would hope it contains other clues as well
I have `<firstname>.nu` as one of my domains, some company that resides on the same postal address as the owners of `<firstname>.se` reached out to buy the domain from me for I think it was €1000. I just told them no, I've had that name for 15 years, I've used it for my personal website ever since and have email and such set up.
I don't care if they printed out my domain on a car print or a card or something that they give out. That's not my problem.
The thing is, companies can (at least under some TLD's) claim domain names. But this claim has to be tested. And the test that I'm aware that exists is kinda if you have some kind of claim to it as well. It may that you own a business with that name, but it's also claim enough that you have that name as your name. Then your claim is valid and you had it first.
I'm not sure how it works with .com, but I wouldn't think they are very different.
Capitalization gives additional context in this case, if it were in the beginning of the sentence though, then one would hope it contains other clues as well