As others have noted, if the individual explicitly mouthed off about the d/c being deliberate, report them. If there's actual in-game text evidence, the GMs have a lot more to go on than just some irate player who's SURE that they did it on purpose so why aren't you punishing them gawd GMs are so useless!!1!

Sadly, very few people are actually stupid enough to spell it out when they're abusing d/c. Most of the time, like after the third wipe when the tank just so coincidentally happens to d/c, they just quietly disappear. There's not a lot that GMs can do about that - and as others have said in the thread, granting PLAYERS the ability to apply punishments is a dangerous step to take. While it's extremely frustrating to see someone shirk the abandon duty punishment in this way, it's certainly the case that folks DO kick people for petty reasons - something that's bad enough even without stacking a thirty minute penalty on top!

Speaking from a strictly personal standpoint, however, I WOULD like players to have the option to apply a penalty to their kicks; an extra checkbox you can tic. I tend to be more concerned with punishing the guilty than I am with protecting the innocent, and I am not so cynical to believe that abuse of this system would be widespread. The fact that you actually have to tic a checkbox for the punishment to be applied means that only the trolliest of trolls will bother, and for those cases accumulated GM reports will eventually punish the kickers anyway.