You can profit with cooking, as Savory Deviate Delight was much in demand in vanilla warcraft. I got mine from mobs in the Barrens, but I believe the pattern also drops from mobs in Mulgore. Either way, the raw fish comes from the pond/lake at the Oasis outside Wailing Caverns. The cooked fish doesn’t just turn you into a pirate or ninja, but you can also gain faster casting time, or +rage for tanks mid-fight, +energy for rogues. (Not for feral druids. There is no such thing as feral druids in classic, they’re all healers with the occasional moonkin!!)
Our initial runs exposed a few (expected) issues: the game sometimes crashed, didn’t recognize our modern video cards, and was incompatible with our current login system. That first pass also couldn’t support any of our modern security and anti-cheating capabilities. Clearly we had a lot of work to do to make WoW Classic live up to the Blizzard standard of quality, and deliver the experience players want.