we just changed all servers to run in NOKILL mode, meaning that you can not kill or get killed on any of our servers anymore.
The reason is that our nokill servers are always full and more people want to get a place in the nokill servers. They are more popular and fill better because you can focus on idling.
On servers with killing activated, people tend to get disconnects after some time because CS:GO needs to perform much more calculations due to all the kills. This doesn't suit our current demand of new players.