They're all s***.
Don't listen to them. You can't expect good Mir3 advice off a Mir2 player. Especially a known cheater so obviously can't player properly anyway.
Not many server online atm, but theres a list of them below.
http://www.lomcn.org/forum/showthread.php?86450-Mir3-Server-Status-List
Theres also the Chinese GSP server which is coming out in europe soon, I'd keep an eye on that if you want an up to date euro experience.
people tend to lurk around mir 2 cause there is so many advantages like speed hacks and many other things like that Mir 3 is alot better than Mir 2 after playing both for years.. people tend to play mir 2 as there is alot more you can do with there files mir 3 is limited but once there is a mir 3 source about there will be alot that will return.... on chronicles atleast 30-40% of the player base was mir 3 players..
everyone just follows the usercount mostly as thats the most attractive part of servers.