The GDT is annoying

Someone of the GDT logged on my server because I needed help, bothered me and logged out. Thank you for the "nice" GDT staff...
Useless anyway (if I ask, I just get bothered and not the help I expected)...
What is the GDT for (if they don't help with the development of hosted servers)? I had to do nearly all the stuff at my own but its a way too much (okay, most of the things I need are done).