My biggest wow fail was learning how to play it...
I wish i was still a newb, cause u know that thats the best time of ur wow experience, dont u sometimes wish u could just go out and start running around finding out new, useless stuff? i still remember exploring wow on my 40something hunter on retail, when i didnt give a **** about my gear, or my lvl. All i wanted was to have fun, and--errr-- l2p, but now im sorry for not beeing forever a nub.
tl;dr: I wish i was still a newb, like all of u guys do
oh perfect, heres my worst one, i got addicted to the game the very 1st time i saw my friends playing it, i made my 1st 10 day trial acc (lvl20 max) and after the 10 days i made an another one and another and another (i'm serious, got SS of every char) so after making ~10 trial accs i finally found out about private servers :D Don't call me a nerd it was few years ago, i've changed xD
My first character was a tauren druid that i made on a trial account. I remember doing all the quests before you get to thunderbluff and did not have any bags drops for me the whole time. (i learned there were bags by watching the convo in general) when i got to thunderbluff i learned lw and skinning and when i saw the recipe for 8 slot bags i thought holy crap! im gonna be rich by selling these 8 slot bags!
when i started playing with my rogue, my friend told me they were invisible and ppl couldn't see me. i never used stealth cuz i thot i was invisible all the time :x.
Until lvl 25 i wondered why some mobs could attack me while being invisible.
When i started playing wow on a prv server R.I.P.(ol'nice tbc times) i had a warrior Draenei, i got to lvl 70 i raided BT and soemone asked, is there any tank? and then me a 9k hp warrior replied i am tank!!!! I did this for like 1 month or so xD
I thought that clicking on the mob made the char atack faster :)
my first character was an undead mage and i killed the scarlet mobs in the starting zone for i don't know how long until i realised there are other towns :)
The first time i flew with the flight master i found it very exciting O.o ... 10 years old kid what do you expect ?