- No. There is no particular reason why there needs to be one (say) twitter alternative. Heck, there is not even a reason why there should be a alternative. Fediverse is allowed to be their own things.
- But each site already has their front page. See eg.: lemmy.dbzer0.com. Alternatively if you meant “each software”, that’s more-or-less what join-lemmy.org is doing.
- No but yes.
- I’m not sure that leads to where you think it leads to. That would require authenticating users financially, for one, else it becomes a dark pattern magnet for suckpuppeting.
- Mostly absolutely yes. I think I’ve seen it discussed a few times under “fediverse identity” or something like that.
You could always keep it open for internal usage, or offer it as a backup for when Cloudflare oopsies the internet or smth. It’s how we did the meeting that should have been an email at where I work, the day Clownstrike hit.