Region lock doesn't help anyone. If you want to blame it on something, let it be the fact that you played all pick.
I don't actually think region lock would be useful in the grand scheme of things but holy shit do I want it when there are so many non-english speakers on US servers. Like Mexico? I'm cool with that, they share a border, immigrants? Cool with that. Peru? Don't they have a Brazil server? Like come on.
I play on EU West and it happened to me as well. Peruvians aren't any better or worse than anyone else. Dota just attracts the worst kind of people.
Lol true dat. I just find it frankly baffling that I play on US west and east, and never get russians, never get anyone else, it's always Americans Canadians and Peruvians, I don't even get queued with Mexicans. God though nothing sets me off worse than item stealing. Like stealing someone's items is worse in my eyes than picking prophet and teleporting into the enemy fountain over and over again. UGH!