It's not about your activities alone, you have to earn merit to get the gold coin (merit) you are referring to
30 activities with 1merit will net you Jr member
60 activities with 10merit will net you Member
120 activities with 100merits will net you a Full member. Etc
Without those gold coins you aren't going to get ranked up even if you have 30, 60, 120 activities
Sorry, but you're wrong if you referring merit as gold coin or vice versa. Gold coin is just a tag on each account (example : Brand new 1 gold coin, Member 2 gold coin etc) and nothing to do for rank up.
For OP, I think this thread is similar like this thread
https://bitcointalk.org/index.php?topic=5248190.0