Nope

I use migadu, works well, cheap and easy to set up.

Nitrux looks pretty nice

This is really helpful, thank you.

That doesn’t sound like a tea brand we have!

It’s a good idea.

I would say that so long as communities are governing their own tags but it’s somehow monitored to make sure two tags don’t mean the same thing it could be a real positive, especially for support topics etc.