Well I left GB2 on when I went over to my families house, ended up staying over night, on my way home I expected I probably DC'd but when I turned my moniter on my toon was still gathering. I was in uldum doing routes pretting much 15 hours straight, what should I do just hold onto the mats for a while in a Guild bank, and sell it slowly, how do people actually get cought. I never got whispered or nuthin..
Would only became a problem if someone reported you wihthin that time, so that the gamemasters take a look into. Dont flood the AH also and split it on different chars/days.
I bot in 2-4 hour stretches, but bot 8-16 hour spans, but have left bots running for whole weekends by accident before and did not get a ban. Actually never gotten a ban from gathering stuff, always on HB quest profiles 1-60 and 70-80. Not saying my luck is fact for all, but 14 hours is not insane I suppose...I know of a couple people flying around Uldumn for 8-10 hour stretches looking for the camel figurine...they happen to harvest while there too, so I guess it could get them banned if some GM only looked at playtime in a given zone.
I say, don't worry about it. I'm done more than 14 hours before. Now if you keep killing the same mobs for 14 hours, it's gotta be a problem.