Fostik wrote: I am not doing nothing bad.
Yes, what you're doing is bad, even if it's unintentional. it's not going to get you thrown out of the game, not get your account blocked or banned, but will cause you and everyone else headaches.
Think of it like this. It's like driving down the highway. When there is no traffic, nobody but the cops will care if you are going at 200 kmh. If there is heavy traffic, everyone cares if you move too fast. The problem with sending data to the server is that you, as a player, probably won't know how busy the server actually is. By sending traffic quickly, you risk a collision, the resulting lag, and possibly other problems. Be a kind netizen and don't abuse the server.
If the standard client needs to get some code added to help with this, then so be it. If custom clients need to add their own code to limit how quickly you can dump your inventory multiple times, then so be it. Every multiplayer game in existence nowadays contains such code simply to prevent people from hacking or crashing servers.