If enemy quits we get less rewards.
If enemy quits first turn we get no reward.
This is not fair at all, because it encourages people to only play when they face weaker enemies.
I suggest at least to get 0 reward when you quit but opponent should get something even 500 sm. At least to feel satisfied that you scared the other to quit (as many players that lost to you they quit first turn they enter the game).
Also a time penalty system not to be able to get in a game for 5 minutes after you quit will help.

there already is a penalty for quitting it is that the person loses ladder points and doesn't get the small extra for losing a battle

I didnt know that. thanks for the info.

At least add 100 sm ! even 1 sm For the Reward feeling!

Adding anything would just cause it to be farmed.

people dont always quit either. to you it seems as though they do. but speaking personally i have never quit a battle and never will, but there has been battles lost where i go to my replays and see a battle that says i quit without ever moving. i never saw the battle to start with. its a glitch and/or bug.