First things first, here's a poll I made (quite a simple one obviously) to know what the community's thoughts are about the future population numbers on classic realms: http://www.strawpoll.me/14814395
Now, Here's my personal opinion: I think that anything lower than 3000 and higher than 6000 is actually a mistake nowadays. On one hand, if your server's not populated enough, you're going to have a hard time enjoying every aspect of the game (mostly pvp and world pvp, but potentially high end pve too). However, if your server's completely full of people (nostalrius-like, with 11 000-12 000 people online all the time) then...yeah, things actually become unplayable.
So what do you guys think? What is the ideal number when it comes to population cap, and why do you think that is?
/discuss