I agree with KARyan here.. I was scratching my head a few times as even the major details were missed from a few Designers in my contest (ie: I had one logo entered and they misspelled my company name?)
But to be honest - I think English is not the primary language for many designers - at least in my Competition. So, what I have found was very few active dialogue between myself and those designers from other countries. Ultimately the winner was from another country - and that Designer had the most interaction with me. It also goes to show that the quality of interaction between the Designer and CH will produce better results for both. A win - win...