The weak points may be in explaining to players how to contact GMs, and in educating them in the amount of work the few GMs are doing besides unsticking players.
From your 'all ... are busy' and 'please try again later' messages I get the feeling that you were not contacting GMs at all, but asking for help in the help channel. This channel is occupied by normal players who spend some time helping others. If 1% of all players does this, there will be one player in this channel when there are a hundred on line. It is not surprising that sometimes there are none. And if there are, they are normal players, so they cannot unstick you anyway.
Did you try '/who game' to find if there are gms online (again, not 10% of players are gms) to send them a /tell?
Did you use the /petition function to ask for GM help
DId you try on IRC if there really are no GMs online?
Hopefully this will help you see that a lot is done to make this game fun for all, that many weak points are known and do not need pointing out, and that demanding a 30 second response time makes all of us laugh
