They do still exist, basic, member and regular for mere mortals, and leader which is basically just staff.
There are only 64 “regulars” in the community, and most people are “Basic”
People do still get their “regular” badge, but it’s not given lightly, and takes a little while to attain. I’m not certain of the exact process, maybe a team member can speak to that better.
If you continue to be an active, reliable contributor and you’ll be on your way to being a regular!
(hint, if you look in the available badges, and click on Regular, you can see the names of all the regulars and when they were given it - that may give you an idea of what’s involved)