Honestly at this point threads federation probably won’t even be able to get the first 2 E’s because it’s opt-in on the Threads side. Most Threads users don’t know what ActivityPub is and aren’t going to go digging through settings to turn it on. Aside from the POTUS Threads account I legitimately haven’t found a threads account I’d remotely care about that bothered to turn it on, even among some of the more tech-oriented ones