Once again:
It's not the "quitters count" or the "disconnect penalty", it's designed to show how many of the last 30 games you completed, regardless of responsibility or guilt.
Your opponent quits (you may win the match): %% descends.
Your partner quits: %% descends.
Your internet connection breaks: %% descends.
Flash aborts your game: %% descends.
Advert aborts your game: %% descends.
Skins game error: %% descends.
Blitz game error: %% descends.
Strokeplay game error due to quitting companions: %% descends.
Game abort due to inactivity while duely waiting 5 mins: %% descends.
IMHO it's alarming that 5 out of 9 reasons shown here (without knowing the frequence) are exclusively WGT responsibility.