Why is Red popping?

[Furyk]

Just starting on Project1999. I have played/leveled on both the Rathe and Rallos Zek servers on live and ended up playing on Tallon Zek for awhile before I finally quit EQ.

I would rather play on a PvP server but is the population difference really a huge issue? Will I pretty much be forced to solo from 1 to 60 or are there enough players to find groups along the way?

Thanks for in advance for any advice.