Not those exact markings, but TPB does have user-markings displayed that can serve as a vouch for credibility.

- Normal User, no special status (No Skull) - Trusted (Pink Skull) - VIP (Green Skull) - Helper (Blue Skull, Legacy) - Moderator (Black MOD Tag) - Super Moderator (Red MOD Tag) - Administrator (Black ADMIN Tag)

https://pirates-forum.org/Thread-ThePirateBay-Want-Trusted-V...

Weird, I don't think I have ever seen that. Granted, I'm not a frequent user of TPB.

What he is describing is how Rutracker does things.

Perhaps you could try visiting the famous one mentioned in the headline.