Even the mishaps in the game like, Stone of Jordan dupes, overpowered Gambling feature in the original, some under powered classes in terms of PVP (eventually got more balanced) and so on, there are so many learning opportunities here.
Addition of Runewords in 1.10 really balanced the game even further. Magic Finding (MF) which was an attribute you would want to farm set/rare/unique items were pretty much invested in Sorceresses only for her Teleporting skill. Other classes without teleporting simply could not farm as effectively as her. With a new runeword "enigma" that gave you teleporting skill, it opened up the avenue for other classes to do what Sorceresses do. I can just keep going on and on about this game and how fun it was (even the grinding in cow level for exp).