Reasons to not federate with facebook’s Threads summarized trying to avoid dramatization:

- They are facebook
- They gather A TON of data about users and it seems to extend to federated content too.
- Their motives are unclear, and it really seems they go for Embrace Extend Extinguish here (once people will rely on Threads federation to talk with friends they will pull the plug and make you choose beetween losing communications or migrating on Threads, or they will blackmail admins to choose beetween losing federation with Threads or doing what they want, like ads)
- They seem to completely miss the point of community driven project, making meeting with big instances admins behind closed doors. (So there is no reasons to believe they are here because they care about fediverse)
- They prioritized alghorithm-driven feeds over supporting things like alt text. (so even less reason to believe they care for fediverse or it’s community)
- Federating with them may cause legal problems if server is based in EU or Ireland (Threads was not opened here because of EU privacy laws violation), or Russia (Facebook is considered extremist organization here, Threads was preemptively blocked by russian internet providers)
- They basically support some conservative political entities known even for direct harassment of people. Basically, this means they are already a contender for Fediblock just based on that fact, and a lot more deserved than a lot of instances that get here because of “federation with usual suspects”
- More generally, they are a big instance with lackluster moderation, probably worse than mastosoc
- They are absurdly big instance, small server federating with them will have a lot of technical issues. They won’t pay every server for that. (and even if they will, they will probably force some guidelines or even ads once most admins will start relying on that)