important for anybody following this topic to also know that "hundreds of trademarks" can sometimes just mean that there's a few trademarks in each class. Trademarks in the US are divided into classes, so that two companies that do different things can still be named the same or similar.
The article still has a point, in that similar software companies like Meta and Microsoft have trademarks for "X," but if your PVC pipe company is called X, you might not have a good case against Twitter because who is getting confused between PVC pipes and social media?