I just did a quick run across the Kamael Island and Nornils' Cave, haven't found a single bot train. All the locations were empty and deserted. In the end I found only a couple of bots, planted somewhere away from popular spots.
So, it looks like the GMs can succeed at cleaning the xp grounds at least for a period of time.
Now, we need them to keep doing those anti-bot raids on a regular basis (not like rare sporadic events), else the robots will be back in full force in just a few days.
As long the bot programs exist, boting will be constant problem in these game.
As long the third software companies have income from their job these software will exist.
So don't be dump and belive that it can resloved just from 1-2 or 3 Bot Hammers that GMs make few times.
Hard boters have save their money a long time ago on their "legal" accounts, they have scripts that make them regain all lost characters in couple of days, they don't afraid to be baned and they continue boting right away after ban.
There is no anti-bot system that will protect the server more than few days. Cause on the other side are also Developers that will find again a way to pass through all the protections.