AFK leave buster evading
How and why is this even a thing that can still work in this day and age of League? If Cho Gath doesn't do 1 point of damage to a minion, monster or champion from minute 6 to minute 17, but inputs commands to dance while in the fountain and laugh while in the fountain and moves slightly in the fountain... guess what? He's afking and taking the slight time to evade leave buster.
Riot can surely recognize said Cho is contributing nothing based on raw data from minute 6 to minute 17, but had time to input dance and laugh spams. In said scenario, they can surely immediately, automatedly give Cho'Gath the next elevation in his punishment towards perma ban. Safely as well, it's uncontestable in these types of scenarios.
Step it up RITO.