Damn! nostrgraph.net/dashboard is currently still in alpha/beta it seems... happen to know when waitlists open? :)
Hashtags are definitely a thing on #Nostr.
https://nostr.band is a great way to get insights. So is https://nostrgraph.net/dashboard
Definitely post your passions. Superhot is one of my favorite VR games. Getting a #zap from posting your passion only adds fuel to the fire!
Discussion
No clue, but I’ll try to keep you posted.