The “Regular” title is a bit of a misnomer. It’s users who have been hand selected by staff for Trust Level 3. It’s got little to do with regularity of posting, and more to do with their attitude and behavior. Some are daily contributers, but most not.
I’ve been a forum member for about 3 years, and a daily poster since launch day. Not a day missed of at least reading the forum. That’s “regular”. But alas I’ve run afoul of the rules a few times too many with my often pointed opinion, short temper and attitude associated with it to ever have that bestowed upon me. Lol