You will never find "happy" l2 player..
Everyone will find something to blame admins, it will be the balance, the server economy, the too much farm, the donations, the classes that are useless to play and a lot of things more!
And my opinion is that since everyone is able to create a server even a newbie with 0 knowledge cause he can still get an compiled pack and open a server, people started to get bored of this and now it's hard to trust a server and believe that will be something "unique" or something that fits to their needs and cause of this the most players of l2 community left l2.
Also for example let's take me, since i started to play pvp servers and i was mostly play on pvp servers now i got bored of them but i also got bored of the farm/craft thing so i won't play or i will join a server for a week maybe more and then i will just leave and i will play again after 2,3 months.. And the most of players do the same thing.