I’ve come to accept layering as a compromise for managing a potential problem of servers that have too many people on them.
If the system indeed breaks into two roughly equal layers when the population breaks 3000, then I can see problems for lower population servers. If a server usually has around 3100 people online, then I see no point in have two layers, but if a server usually has 6000, I understand the need.
That being said, the questions of abusing rare spawns and resources, or avoiding ganks is certainly pertinent. How blizzard will handle this is interesting to me. Maybe they could have one spawn of a rare or resource on the whole server, regardless of layer? Haven’t thought it out too much, but that may be a solution.
Anyway, I’m happy to hear thoughts on how to solve the potential exploitation of layers.