Customer Support Ticketing bad behavior is absolutely important for lessening that bad behavior in the game.
A single player that rages in chat could play 10 games in a night and impact 23 x 10 = 230 other players with their behavior in a single play session. Creating a Customer Support Ticket will see the issue checked, verified, and addressed. Infractions to the rules rarely escalate to Permanent statuses, but it starts the journey if that's where it ultimately has to go or hastens the process if it's already started. That and 230+ people a night don't have to read/block some raging person in chat.
Same issue with people that intentionally throw Ranked matches or try to intentionally ruin the game experience of others. Customer Support Tickets get those issues logged, addressed, and escalated if they continue.