First, 99% of the catacombs and necropolis are controlled by farmers who use a Kamael archer or summoner to occupy an entire room. If you do find a vacant room, it is because they are logged off, and they will log in and PK you instantly. If you actually check, you will see that almost every single one of their toons are being operated by Adrenaline. As a matter of fact, they occupy almost every good hunting spot in the game. They have too much control of this game including almost every event.
Second, the adena drops is pitiful and the amount of adena you make cannot pay for the shots, spirit ores, elemental stones, etc... you consume to hunt in these areas. There are many other areas that even the strongest and well equipped players have difficulty farming in unless they are using 3rd party software. I personally feel you should allow adena to drop in elemental zones and adjust the Varka and Ketra areas where it will make sense for people to farm there, without having to burn through more adena then they are making just to stay alive.
Third, the PK system is a joke and there is very little consequence when a player who has already quit the game will simply log in his Lv 86+ toon and PK the entire map just for fun and ruin the game for everyone else. Why don't you limit the amount of player's they can PK in one day? Why can't there be more severe consequences like dropping items permanently or making the cost to restore dropped items incredibly higher? The same clan/alliance has controlled the only castle we can siege for years now with very little resistance, because they are allowed to continue to dominate the game using 3rd party software to their advantage to control entire hunting areas and events with bots and scripts.
I believe your development team and administrators know all this already, but you still choose to do nothing about it. The entire real player base has complained and advised you about this for years, yet you choose to ignore us and make unrelated changes and updates that do not address the real issues we are having in the game. As a matter of fact, this is just another one of the many topics concerning these issue that is brought up and then neglected as usual.
So many of my friends and other players have moved on already to different games. I've personally invested so much time and money on L2, that's why it's so hard for me to leave, but I have one foot out the door already. I have already stopped purchasing NC Coins long ago and it's just a matter of time that me along with the handful of legit remaining players will leave and move on. This game is already infamous and is known as L2 Bots or L2 Adrenaline...
Respectfully,
True Player