>>100453774In their comments on a channel, click on their profile picture. You should see a count of how many times they've commented, how many hearts they've gotten, and sometimes it'll let you browse those comments.
Looks like this. (this is just some random commenter from CC, not anyone in particular).
If you're asking for an external archive, we used to have a public one, but it became Unicorn Council only. You have to be inducted in person.
