My point is that just by looking at an onion address, there is no way to determine that. 

 You chose to volunteer that information. It doesn't necessarily have to be the same service 

 Any Tor relays yet?
 

 https://github.com/0xtrr/onion-service-nostr-relays 

 Thank you.
Tried them, either they don't work or poor performance makes them unusable. Sad.
Will have to run my own, I guess.