Came here to say the same thing. DotA 2 is one of the best experiences I've had in gaming ettiquette. Sure there are still the occasional trolls and flamewars. In general the games are handled with sportsmanship and teamwork.
Contrast this with any other multiplayer game and you'll see constant harassment, cheating, and an overwhelming lack of team play. Overall just too many people who make it their job to ruin the games.
The only thing I'd change is better onboarding of new players. There's a big gulf between the tutorials/bots and PvP. The first 5-10 real games for a new player are filled with insults, and losses.
Contrast this with any other multiplayer game and you'll see constant harassment, cheating, and an overwhelming lack of team play. Overall just too many people who make it their job to ruin the games.
The only thing I'd change is better onboarding of new players. There's a big gulf between the tutorials/bots and PvP. The first 5-10 real games for a new player are filled with insults, and losses.