What I don't agree with is people making shit up to support their argument. But honestly that doesn't happen often and the most common tropes in this thread are incredibly weak. Just a few off the dome (long post ahead):
- The "untapped audience" fallacy - Completely speculative in nature, there's no rock solid proof the audience for Legacy would be interested in the game long term. While very few people doubt that Legacy would bring some of the currently unsubbed demographic back, there's no conclusive evidence to support how many of them would pay for the service nor whether the servers would maintain a sustainable audience when faced with the possibility of an indefinite content drought.
- Nost did it for free, why can't Blizzard? - One of the single weakest arguments in favor of Legacy as it completely ignores the fact that Nost is an emulation and Blizzard would use their source if they were to ever release the servers. It also often greatly downplays the innumerable programming challenges which adapting Legacy to the current B.net framework would entail while simultaneously ignoring the fact that there would need to be a customer support team as well as part time developers on hand for bug fixes and maintenance.
- Retail WoW loses subs while Vanilla WoW gained them - An argument which might seem strong on the surface yet holds little to no water when you apply critical thinking to the subject. The conditions for WoW's breakout popularity were exclusive to the climate of gaming when it was released. Its earliest iterations heavily borrowed many tried-and-true concepts from the previous king of MMO's, EverQuest. From 2004 until 2010, the MMO market was incredibly popular and WoW enjoyed its most rampant success in this timeframe. However, after WotLK, the gaming environment began to shift away from MMO popularity and more towards eSports such as MOBAs (DotA, LoL, HoN) and FPS games (CS:GO, Halo, OverWatch). Because of this shift, the conditions for a return to Vanilla WoW's popularity will likely never happen again and certainly relaunching it will not bring upon the Renaissance many pro-Legacy players seem convinced it will. Additionally, WoW's current model supports a sudden rise then fall of subscribers at the start of every expansion. I believe Blizzard realizes the conditions which made WoW an unstoppable juggernaut have long since subsided but they're a company adaptive enough to keep it profitable without relying on consistently high subscriber numbers.
- Blizzard has no right to protect their IP - This is one of the most infuriating arguments brought forth by the pro-Legacy group. There are so many countless arguments to be made in favor of a company protecting its IP that it's almost mind-boggling that there are people out there who would prefer to live in a world where they didn't. It's an old, boring and shitty game that isn't around anymore but this doesn't give you a free pass for piracy just because you want to have the implicit right to "enjoy Legacy" without Blizzard's legal team holding a proverbial axe to your favorite private server's throat. Blizzard doesn't take down private realms because they hate people having fun, they take them down because a perceived weakness against outright IP theft is a slippery slope which leads to the overall quality of WoW's brand being cheapened.
There are some other tropes which crop up from time to time but most of them are inconsequential anecdotal claims like, "I know 5 people who quit retail to play Nost" or "Vanilla WoW was better because {insert stupid fucking opinion}." I don't mind arguing the merits of this discussion but I haven't seen anything new posted in over 1,000 pages. The reasonable portion of my brain tells me I should just ignore this thread but I enjoy posting here because I find entertainment in the debate. I really wish there were more credible counter-arguments and I can already hear the pro-Legacy folks typing furiously in response to each of the above points, but I know in the end nothing new will be gleamed and the nature of the discussion will go back to its usual "ambassadors of Legacy" circlejerk after a page or two.
¯\_(ツ)_/¯