Guys, it was very common for (side-)projects to self host a forum in the 2000s, what changed since then so that many people find this unreasonable? Or are you a vocal minority?
It's not like you have to host a service that needs 5 figures SLA.
I understand that people may not like having to host stuff, but seriously, there's no need to dismiss the option that harshly, calling forums "random shit" and so on.
Now people want it easy and free for everything: git hosting, website, communication tools… you can't have your cake and eat it too forever. It's very unfortunate those investors-infested companies running at loss made us used to this.
It's requiring that everything is free and easy that's an unreasonable stance, not suggesting to self-host or to pay. At some point things need to be sustainable. Even for side projects with limited time available. A community can't be managed if nobody has time for this anyway.
Setting up a forum is not the hard part in handling a community. Moderation is a lot harder.