What is proper use of tags in profiles (event kind 0)?

I find that many clients (Iris, Snort, etc) overwrite tags... and I believe this should be considered a "bug".

E.g. I want to use 'g' tags (for geolocation on user profiles, per NIP-12 + NIP-01... but clients profile editors erase tags.

#nostrdevs #nostrdev #nip #nips #asknostr