Thank you for the feedback. If you have more to share, keep it coming, please. We all will figure this out.
You seem to agree on the idea that a community wishlist doesn’t need activity to be useful as long as it’s there when someone wants to contribute to it or update it. It’s a fair point.
By the absence of comments, you also seem to agree that the rest isn’t as important and it’s ok to close it. In a scenario where this Discourse forum lives beyond November 25, I would keep the link with Presets & Clips because @Bitwiggers put a lot of work on it and it works by itself no matter how few comments about presets land here.
Other scenarios mentioned refer to Bitwig’s Discord (see @ensonic’s comment there) and to GitHub. A read-only alternative that already exists is Archive.org (see the last snapshot of the community wishlist).
About keeping this Discourse forum, the key is community work and governance. If I’m the only active user with special permissions, then governance is simple (just me) and I have shared my personal decision above. 
If you have better ideas, step in as an active moderator, the logical next step. Admins and moderators welcome is a bit outdated but still serves its purpose. Anyone interested in becoming a moderator or administrator, please check that topic, and comment there. I’m more than happy to share the governance of Bitwish (and hence the decisions about its future) with others.
Full disclaimer: the only “ideological” bias that might prevent me to share the keys with someone else is to avoid that Bitwish is weaponized against the Bitwig team, their releases, and their approach to community management. I’m convinced that Bitwish has got this far because, collectively, we have avoided this temptation.
Oh, and it’s really not about the money. Bitwish costs $12 USD / month for the hosting and $3,60 USD / month for the daily backups.