Honestly while there are plenty reasons to be concerned with what #Threads might do the biggest immediate concern for me personally is just if they are going to spam ads at me by having bot accounts that push spam to me in my mentions.... that would be a nightmare!
@freemo What if they just insert ads in user's toot? Nobody reads eula anymore, and they can ask permits from user and send toots containing ads and trackers. Then they will be all over the place.