Yes that's totally logical to do but what is going to happen to groups that already got more than 90 members for the meantime?
Actually current groups with more than 90 members (my group is one of them) have a minimum of 50-60 inactive players that haven't logged in for over a year so you can easily get rid of them and re-invite them back when they are active again. But, since a lot of players here are against the idea,How about we make it so when a player decides to create a group he will have a maximum of 90 player slots and not 150 (if this is possible of course)? so older groups wouldn't have to kick over 50 or 60 of their members.
About your idea, then what is the purpose of implementing this suggestion (Brian's)?
Lowering max amount of slots will increase possibility for new groups to emerge, boards could have lower requirements and group features could cost less. More groups would make the server more lively.
Imo, it is pretty difficult to just get rid of the old members that basically worked for years to make your group succeed. Any old group leader/founder will understand me. I doubt that kicking old honourable members will help the other groups reach a higher amount of members. We kick members almost daily for being inactive but we might reach a point where we won't have a choice besides kicking the old homies. I cannot support this suggestion.