I did a quick count. If I got it right, there are over 600 with 100 or more posts and over 800 with 50 or more posts. That seems to me like a good number who have had active engagement with the forum at some stage, at least.
I'm pleased to see the Forum's ongoing popularity. It does its primary objective well:-
"IceInSpace is a community website dedicated to promoting amateur astronomy in the southern hemisphere - including Australia, New Zealand, South America, Southern Africa and parts of Asia. We aim to help stargazers from around the world discover, discuss and enjoy the beauty of our night sky."
Well done to Mike, Terry and the team.