The reason this plague in the game was a good model is because we had all walks of life type people reacting in different ways.
Those with healing magic would go into infected areas to see if they could save the infected or at least keep them alive through the disease. Those that couldn’t do that tried to warn players before they entered infected areas. NPC could be infected and have “no symptoms”; they could be asymptomatic carriers and pass it to nearby players.
The best part though was by the time Blizzard had finally come out and said “if you are infected, try to quarantine yourself so you don’t spread it!!” the player base was ALREADY DOING SO. The players had recognized the problem and worked together in myriad ways to fix it.
They also had negative reactions as well, another reason this was such a good example of a real outbreak. They had a couple people report healers or alchemists who were claiming to sell cures/treatments to the disease that ultimately would do nothing. They had a group of players that would hide in the mountains near cities and just pass the disease back and forth between themselves and then raid cities to infect them all over again. They had higher level players start rebelling on the servers. Saying it was an overreaction and if you get it you’ll just die and you can come back and be fine, etc. Since they could get the disease and survive, ie it didn’t do enough damage to them since they were higher level, they felt it unnecessary to care about whether they got it or not. They complained about not getting to play like normal just because this plague could kill lower level players.
ALL of these reactions, good and bad, were real enough to what we assumed a real life epidemic would play out that people started to use it as a model. And now look, we have proof that it was accurate.
However, what we needed to learn from it was primarily that it wasn’t reversible. The bad reactions and lack of care from the few players that weren’t cooperating made it impossible in the end to contain. The only reason it was fixed at all is the game had to reverse time, literally just delete their entire game log a few weeks and time travel weeks into the past to before the plague even began.
The reason no one believed it was a valid model is that it was a video game and thus the consequences weren’t permanent. “No one would act like that in real life.” But look at how we are handling this outbreak. Is it not eerily similar?
And we can’t time travel.