Trust Level 3 is defined by the algorithm as “a regular”. In other words, the person comes here regularly, and they don’t just lurk - they interact with others. This is an out-of-the-box feature of the platform. New users are automatically assigned level 1 and advance by participation. It exists in much the same way the subscriber/member hierarchy does on the main site.
Trust Level 3 also has its own lounge - The Giza Lounge. It’s designed so that someone can’t create an account in 10seconds that have never been to the forum before and have the full run of the place. It’s possible to have discussions just with regulars, like the back room of a cigar lounge.
Because the old platform cannot pass information to the new about ‘regulars’ being ‘regulars’, in the process of transitioning from one platform to another, we’ve created a manual process to address it.
There’s more information here.