IMO you would fit right in!
1) I'm the owner and we have 2 directors, we set up the club tournaments and are active.
2) Our message board isn't all that active - I think a few of our members don't even know where it is on the new version of the game. But if you posted anything, many of us will read it. Our club forum is mainly to provide members with updates on our league, tournaments, etc., when a new round is set up, when results have been posted, etc. We use Google spreadsheets and a site called Challonge to maintain our records and stats. Members do not have to enter scores or do anything else as far as maintaining those sites, the 3 of us do it all.
As far as posting questions, advice, etc. on the forum, doing that will get replies, etc. We do have a few members who apparently don't read Forum posts very often.
3) Member participation in club events is excellent! We have 30 members right now, 5 or so of them are inactive right now for real life reasons, but of the remaining 25, everyone plays regularly in club events, usually 15-18 or so will enter each one, and several of us play virtually all of our events, leagues, etc.
We don't require members to play in Clashes, but several do. With all the various leagues we have, some members don't have too much time to play clashes.
Most of our players are Legends, a few are above that, and a few are below. And the majority of us have been a member of our club for several years, we have a great bunch of guys...and a few women too. You play often, I think you'd be an excellent addition to our club!
Tom