A few suggestions

[Hobo]

No to the first one. Joshy explained it all. Plus being able to host the paycheck script on my website gives me more freedom to do more things to it that may not be available if it was added to the clubs. Provided I don't break the script...
It's also a unique thing that some clubs do. To make a club popular you need to do something unique with it

Second one, meh. I just use /stats

[mick88]

I don't see a point in paying per mission. Clubs get funds from the players in the first place, so why give it right back to them?
Currently it's only possible to spend club funds, but not transfer to other players. This is supposed to prevent club owners from scamming members. But I may consider an update in the future.