@Gargron @mastodonmigration I can already think of one way if they are devious enough - If I follow someone on threads, then threads can just insert sponsored posts into their timeline that auto syndicates over to my account on Mastodon - So Threads can generate advertising posts on behalf of people and make them look like normal posts which will come across - Twitter essentially did this at one point & may still be doing it to fool people into reading ads