I feel like yes forums are being closed because they have migrated to the likes of things like discord

I have mixed opinions about discord and if I can be honest, I have mixed opinions about forums as well

My opinion is to take things like forums and transfer them over to things like xmpp/(Irc?)/(signal?)/(matrix most prefered)

There are bridges as well for matrix <-> Irc if this is something that interests you, there are bridges for everything but I prefer matrix with cinny and I generally think that due to its decentralized nature, it might be better than centralized forums maybe as well.