Why not self host it? If you use Software like snac or gotosocial its quiet easy and soft on resources.

No. If the project is interesting enough for people spending their time developing and using it there will always be running Lemmy instances. The need for funding over the amount people are willing to dedicate to a hobby project is the death of a project like this.

I don’t see a “we” in this, follow the free software way: Don’t like it? Fork it yourself or don’t use it.

If you want encrypted mail, go the GnuPG route, everything else is only cosplaying security.