The “noobs” (like you call them) are not all noobs, and this opponents WIN battles, if a player lose on purpose.
So it can never be called “exploit”, when the players get FREE wins
The Clan win the Clan rewards ANYWAYS (special the top clans), doesnt matter if a member leave, is kicked, or new members are added, or old members rejoin.
So to border the member recruiting make no sense, it MUST stay dynamic, because many many things can happen …
players need to do things for school, work, sport, family, projects, etc.
players go on vacations
players sometimes lose their internet for same days (new line, new flat, new place to live etc)
players have accidents at work, at their hobby, health problems
as we had painful to see - players can die
A Clan and its member management need to be dynamic
I like your first point about a 2nd leader, but WE asked for it like since 2 years or more … and it was never changed
Also - like your clan had to experience - there is still no solution, if the leader leave a clan … clan is kinda lost after