Signal isn’t saying no one can use the word signal. The problem arises when you use all of their branding together in such a way that could plausibly fool someone into thinking it’s their software, which very much appears to have happened here (see this entire thread full of people who installed this trademark violating build thinking it was legit)
yeah I noticed that. Quite a reversal from their previous position, which was incredibly clear. I wonder if they'll extend this policy to other groups that have previously been shut down for doing the same thing (F-Droid being the obvious one here).