Purposely DCing should be reportable

[Chocolys]

If you don't kick them after they DC, they should be right back in the dungeon when they reconnect (unless they changed that). They just hope you will so they will avoid the penalty.

So it's like with purposely AFK people, you either can't afford the time and kick them, or you don't preventing them to cheat the penalty and they end up wasting their own time as well and not just yours. ¨

Personally I don't like to let them go easy because it encourages their bad habit
Unless they're DPS, because having to queue again as DPS is penalty in itself, but because of that it's rarely DPS who want to be kicked. Also they're usually easy to replace.