The principal issue is attempting to wow gold classic do anything which isn't the zombie infestation gets hard to do, largely since participant zombies like to hangout at quest givers and other areas where plenty of players tend to collect. Because this event also will come with an entire questline that occurs in the zones across Stormwind and Orgrimmar, there's ample opportunity to camp out and potentially infect as many players as possible. However, one positive change from the last time that the zombie infestation occurred is that Blizzard seems to have made it more challenging to disperse it to the rest of Azeroth. One of the first things I did when I got infected was to hearth into Dalaran, but once I came, I was not infected anymore. However, I was able to take it to Boralus via using the portal in the mage tower, so it is not a perfect program yet.
The main point to understand is two separate events are moving on. There's the scourge invasion as well as the questline, that requires gamers to Icecrown and sends players on a goose hunt for Nathanos. Then there's the zombie infestation, which adds a small PvP aspect for everything. It is not surprising a few folks would want to take part in the very first event but not the second, as not everyone enjoys PvP or using their class and race skills removed and replaced by other skills. Blizzard could make the infestation only active for a few of the months of the invasion, however, that's no fun for anyone who misses that week and would want to participate. Honestly, the best solution probably would be to leverage the Warmode system. An infestation is essentially a PvP event , so being able to opt-in with Warmode makes sense. Even doing something at which for most of the invasion, players needed to opt into cheap wow classic gold the infestation by choosing Warmode, but then at the last week, before Shadowlands droppedthe infestation would influence everyone, would most likely be the best solution.