A world buff that you have to acquire before a raid, then log your character off until the raid, in order to keep the full timer is not the same as buying/farming for consumables. It will prevent you from logging onto your raid main days or hours at a time in any given week. Getting consumables does not, and you can get consumables via multiple sources. Vanilla was not intended to force players to do a set amount of tasks before raids, other than getting gold for repairs and having enough consumables on you. A world buff is not a consumable.
Consumables can be acquired at any time, but because world buffs have a timer, and have a one time use, they are not intended to be used significantly in a raid situation. You could get them and have them wiped out at the raid entrance by an opposing raid. It’s not like you are going to stop and re-apply them like you do a consumable. The guilds that do it will significantly increase their chances at loot, and quickly, than a raid that does not have them. They will cause guilds to progress much faster than intended.
Sure, in Vanilla a lot of people never bothered with these buffs, or even knew about them. But the people who have spent the last 10 years on pservers, data mining everything they could find, exploiting everything they could, will now be playing Classic. They will bring with them their mindset and game-play. If they out-perform the rest of the guilds because they have worked a little harder to give themselves an edge, it will create intense competition between those guilds that care. Guilds like Method go to insane lengths to get World Firsts on our current Retail game. You really think Method and people like them won’t carry this into Classic?
There is a reason the devs didn’t bother fixing this exploit in Vanilla. Very few people actually knew about stacking various buffs to use it consistantly, and by the time BC came out everyone had moved on. But they did prevent guilds from using these exploits after a BC patch:
Patch 2.1.0
- Fengus’ Ferocity,Mol’dar’s Moxie,Rallying Cry of the Dragonslayer, Slip’kik’s Savvy and Spirit of Zandalar these buffs will no longer work on targets over level 63.
Back in 2005 YouTube, WowHead and other great sources were not yet available to let more people in on these open secrets of Wow, yet now you can very easily find entire raid encounter videos that give you the best, easiest way to do it. It is like that Saronite Bomb exploit in ICC - it was an amazing exploit that someone discovered, and told their guild about, and it helped them with getting a World First. Yet it was a unforeseen result of using an engineering bomb on a boss fight.
You watch, if this world buff stacking nonsense shows up in Classic, it will be fixed almost immediately. People simply didn’t do it during Vanilla, but others have had 10 years of pservers to practice on. Those that played on those will not play as we played in Vanilla. They intimately know where to find all the pre-raid BIS gear, and world buffs, and other things that will help them ‘win’ Classic much faster than the ‘rest’ of us.