I made an app in Firebase once and did it so that people could collaborate but they used per-session IDs that were linked to their real IDs behind the scenes, s

I made an app in Firebase once and did it so that people could collaborate but they used per-session IDs that were linked to their real IDs behind the scenes, so people couldn't spot trends of activity over time. I found it a little tricky to start with while getting familiar with the rules, but it worked really well after I got the hang of it.