I don't like AFK kick. There are many legit reasons why to AFK and the party always consents to it. Examples include:

Baby crying
Phone calls
Making a sandwich
Going Toilet
Go to the store around the corner for a soda
Any type of Real Life emergencies

I know they are silly reasons for most of you, but when you are actually having fun with a group (which is having no trouble to keep going thru the dungeon with 1 less member,) they usually don't mind someone go afk for well over 10 minutes.

Usually I make my own parties with FC members and we end up one or two DDs short, so we adopt them from the Duty Finder. We are usually having a blast, and when someone has to afk, we simply let them. None of the random DDs have ever complained about people AFKing for more than 10, 20 or even 30 minutes because we always find ways to amuse ourselves while waiting. Our dungeon runs have always been stressless and a lot of fun.

If you implement AFK kick in dungeons, you are adding an extra strain to our parties. Our relaxed, laid back leisure time in the dungeons will be all like "Oh no! I have to take care of Real Life, but I'm afraid that I will be kicked from the dungeon when I come back!" And then, we get some random people as replacement who might end up being a moron that want to speed run and stuff. Meanwhile our original party member is back on the computer but have no means to come back to our party.
I don't want that kind of game !!

Please let our party decide how we want to play !! Don't kick us from the dungeons because we had an emergency !!

Vote Kick is many times a better solution than automated kick due to arbitrary rules.