Well, thanks to Zenimax being unable to deal with bots and bugged quests they have not lost another subscriber UNTIL they fix the bugged quests that should never have got past QA and the masses of bots that are allowed to play unhindered.
This isn't an obscure bug that only occurs when a player does an unusual wierd sequence of actions, this is a basic quest bug that should never have got past QA.
What broke the camels back was the Seed quest in Coldharbour, many will have heard of the bugs. Simply put, you have to use seeds that an npc gives you on corpses, 6 of them. The problem is that not every corpse that is supposed to work actually works, get one bugged and you have to abandon the quest and start again. That is assuming that you can even find a mob to kill with all the bots with names like "shgflaihslkjf" etc running around in groups grinding.
When Zenimax fix this and do something about the bots THEN I will resubscribe but until then I like plenty others have had enough. It is a shame really because ESO showed great promise. I just hope they fix the issues before it is too late.