Robert;
YES.......There really are some WGT members who have literally hit "thousands of ranked rounds" here on WGT.
Go take a look at "YOBAN". He's a 142 Level Champion Tier player. Yoban has hit over 25,000 ranked rounds. He has hit 70 Hole-In-Ones.
Not quite sure "why" Yoban has not yet been invited by WGT to be a "Tour Champion"....but, none of us know what the "criteria" is to get that invite.
Jim