Tried cata in Retail because holy **** WOTLK was good and I wanted to se some more hardcore raiding and how it was in retail, but then noooo... LFR, and 10man guilds everywhere not to mention when you did get into a good guild it was welcome to the waiting game, for 3 month's I still stayed on for every raid without a single invite, and at that time I allready cleared the content, not to mention how much they destroyed the gameplay for almost every class but fine...
Went on to MoP with higher hopes, Panda class was really fun to level, the new zones and the graphics was so nice (imo) but then... stuck at rep factions for days, In general I thought MAYBE Blizz had fixed some of the stupid stuff they implented in cata but nah, still the same, wich led me to quit that too.
WoD, just no comment its a boring ****storm.
Legion? I donnu guys if its just me but I have kinda given up on expansions now, it feels like the less they had, the better it was, for some wierd reason, They focused more on the raids and the lore, hell even pvp feels better in WOTLK then any expansion, even though there's alot of qqing goin around about every class.
All of these mayor flaws made many players join warmane allready and more is comming by every day.
Checked some videos off youtube just for fun, the top 10 raids example, Naxxramas 25 as nr 5, Ulduar 25 as nr 3 and ICC 25 as nr 1 in many of them.
Even though TBC players will in most cases allways say TBC was better, WOTLK is favoured mostly from almost every WoW gamer.
What Warmane are doin right now is absolutely correct, focus on WOTLK content, pick it up where it was left and compleate it, we all saw how much hype lord got from that.