This post was from a user who has deleted their account.
My proudest, and most shocking, was getting "The Undying" during an 8man pug in mid-ToC. We were just going for the 8man achieve, and ended up with a nice new title that none of us had really planned for. That, and finally finishing off Shadowmourne on my main. Only need another 18 shards, but it's hard to find people that want to go these days.
Getting my first epic mount on my first lvl 60 a NE Hunter after months and months and fricking months, of farming Satyr's in Azshara and earning that 1000gold all on my own. Was just flipping awesome to sit there on it and just admire it *laugh* I still ride it on that Hunter even if I don't really play her anymore *chuckle*
Mine, was when my guild finally got Hand of A'dal pre nerfs. :D
Glory of the Hero achievement/Red Proto Drake back in Lich King!
Back before The Shattering I was farming Zul Gurub every week for the Zulian Tiger. One day I was lucky enough to have it drop on my Paladin! Then just for the lols I ran it again right after on my druid and it dropped again! My jaw hit the floor. Two Zulian Tigers on the same day, from back to back runs, all within about 20 minutes. That was an Epic 20 minutes.
Guild level 25. It was so much teamwork!
Winning the Panther mount from ZG in 4.2 and getting my RBG mount after grinding out 75 wins :D
I remember getting ashes of al'ar after farming it myself for many months, that felt really good!
Mimiron's head ftw !
I'm really happy I pushed the 500 unique pets barrier recently, and I'm also very happy I've been able to raid Tier 1-14 in the patch they belong too. :D
My favorite achievement so far is still my undying title, mostly because while it was after Ulduar came out it was before Trial of the Crusader came out.
I was most excited to get my 2 legendary weapons from farming Molten Core for blood of the mountain. I can't use the sword but it was still nice to achieve.