The user base on a platform like Threads is probably quite different from that of Lemmy (or reddit) Federating with them means their content is starting to also flood to our platform and in a big way due to their huge number of users meaning that we’re getting our faces stuffed with facebook quality content that many specifically is trying to escape here.
Lemmy doesn’t currently give the option for users to block individual instances. If it did then that would indeed be a better solution