i wonder at what point it would be? Telegram is awful for support, projects probably lose users to scammers and general inability to get help. Discord isn't much better. Orange Pill App is gated -- as is SN, but to a lesser extent. Also Orange Pill App, last I checked, uses location data from your phone...so I'm not really that enthused to sign up for the app just to get support for some other project.

If they used SN, users could potential do free posts or they could turn on pay to post if they get too much spam. You could use SN zap ranking to sort useful posts and comments, so it would possibly require less moderation effort on the part of the project maintainers. Finally, SN makes it so users could tip maintainers for successful responses. A lot of FOSS projects are doing support gratis. SN makes it really easy for users to toss them some sats for their trouble.