All the work we’re doing will ultimately allow us to recreate an authentic classic experience on a platform that is much more optimized and stable, helping us avoid latency and stability issues. Additional improvements will include modern anti-cheat/botting detection, customer service and Battle.net integration, and similar conveniences that do not affect the core gameplay experience.
Blizzard’s stance on old-school servers wasn't always so eager but evolved due to fan demand and the arguments presented in their favor. Somewhat infamously, Brack himself said “you think you do, but you don’t” in regards to the desire to play older versions of WoW back in 2013, and the internet hardly let him live it down until he personally announced World of Warcraft Classic at 2017’s Blizzcon. So does the sentiment that you can’t go home again still hold water in regards to WoW Classic?
To get Blacksmithing to level 300 is much effort. It is not that thing to make fast gold. There is always a lack of Blacksmiths though. Enchanters need rods of all kinds, melee classes look for Sharpening Stones and Weightstones with Counterweights, others buy Iron Spurs. Once you have learnt rare and epic recipes, people will always use your service to craft items.
In this form, there is much less wasted space and spells are no longer limited to three effects. But before we can load any database data, we need to transform the old data layout into the new one. This is not limited to spells, as almost every game system (including items, creatures, player characters, spawning, AI, and more) has had its database layout altered over the years.