Hi Abra,
Frequency satuaration is certainly a problem around that area of the world (and others I'm sure). IHMO, short, concise standard RT is definately a step in the right direction. One thing that I have heard quite a few times is a "guess" at either a heading or alititude instruction (which was missed for whatever reason).
"Ummmm, turn right, ahhhhh.......turn right 240?".
I had a flight one day instructed to leave a hold heading 125 (can you guess which one?), and the reply was "Umm, leave heading, umm, leave heading 285?", which was a blatent guess. When told the correct heading, the reply was "Well, at least we got the 5 right". At the time, I didn't really see the humour in the response.
I guess we could start a similar thread "What does ATC do to give pilots the sh*ts?" (apart from putting Point 7 on Arrivals!)