An analog might be game publisher King (maker of Candy Crush Saga) initiating legal proceedings against makers of other games that used the word "Saga" or "Candy", e.g. "Banner Saga"[1], even though those are obviously not reasonable claims -- and I think they lost? Regardless, they're still able to try, and it exerted pressure.
So, imagine you're sitting in a board room at Twitter, naming your new social web app product, and someone says, "How about 'Twitter+'?", and you know there's Disney+, and Apple TV+, and Google+ all already out there, and you say, "nah... that sounds like a headache we can do without." But maybe not, hence why I noted I was merely wondering.
1 - https://metro.co.uk/2014/01/22/candy-crush-makers-sue-the-ba...
If you're really cheap you can signup through their indian link for a couple of dollars a month.