I may not defederate from Threads yet.
However, in this whole Fediverse takeover debacle, if I notice anyone leaving Fedi to go there, those will be the first people I toss aside and forget about.
Leaving an open platform to go to an abusive one is a major red flag that we don't mesh well.
To each their own, but I'm here to communicate with people. If you go there, it's clear to me that you're not doing it for communication purposes.