Onaylı Üye
If you make stupid moves while the script is open and attract the attention of the other party, you will be banned.
A week before the patch you should not play the game and bypassed. And all patches come at the end of the month. I've never had an account banned like this.Most bans are banwaves.
U also can get banned by Reports but that will take a bit.
Riot dont ban "instant"(after 1-4 games) anymore, just for some scripts that are fully Detected.
Riot is not so interested in the scripters anymore, so we are out of the days where a scripter can solo carry. Sure, you are clearly better with scripts, but you only have to have a lot of kills and the game is most likely won, even without scripts.
Bans are always unexpected and have no specific timing.