If something like Nostr.com can exist for decentralized social media network, and it keep growing despite everything, than I am sure that we could have something similar to work as decentralized forum.
Question is how many people are interested in using forums these days.
This would have been some of the best means by which the most values of the Bitcoin or crypto industry would have been achieved with the forum. Given the fact that, there wouldn’t be any threat of getting it offline based on certain allegations that might arise from certain disjointed associations and the need to prove what, like we had in the mixer case. We wouldn’t have been threatened by that and probably wouldn’t have the decision we had on mixers but, how possible would it be.
Bitcoin is decentralized but the forum is centralized and there are known parties to its hosting and governing which make any of the possibilities to these not so feasible.