Apparently, you guys won't stop arguing about how long the time limit should be if the AFK suggestion is added into ECC. So I have decided to let you guys vote. Also, I made an extra choice at the end just in case you guys think that these time limits are too short, but if that is the case, then there is something wrong with you. <-------------LOL
No time limit at all, afk autokicking requires extra checks to see if a player moves or not, this in turn creates lag, seeing as 300+ players walk around during on-peak.
There should not be a afk time limit. Like RyanJF1 said, it should only be added to the hunger games. People use the afk for letting crops grow, let mobs spawn for exp, and to let stuff smelt. This should not be added, it would have a major effect on farming.
You guys do know that people can do other things to keep themselves entertained while they do this stuff unless they're the only person in the town. But once again remember that this is only a suggestion