Inactivity

[Szei]

Yes. I was going to comment that 7 days is a lot. 3-4 days seems much more reasonable.

EDIT:
Actually this would be better (copied from below post)

You have a 6 day (the exact number can be tweaked) 'BANK' of extra time in addition to a 1 day per move standard time limit. If you don't make your turn in the allotted 1 day limit, you start eating into your 6 day bank.

This way it encourages players to stay on top of their games but if they're good about playing their turns on time they'll have a 'bank' of time to fall back on if something comes up and they can't play for an extended period of time.

This system could be reserved for league games while casual unranked games can continue using the current system (since you can just forfeit the game if your opponent is taking too long and you want to start new ones).