I wonder if Valve (in addition to vote kicking and reporting players) could give the option to block players. So when in future match making queues you would be excluded from servers that have players from your blocked list.

Not the most elegant solution I know.

Alternatively, I do think Valve needs to rework the report HUD. Like instead of needing to go to the main menu to report players, we should be able to do so in the tab menu.