I tried to start a contest at 12Designer.com and after filling out the first form for the contest I got this error message.
Common! At least 250 character? Why??? No way!
I just skipped everything and started the contest at 99designs.com. And at 99designs there was not requirement for at least 250 characters. I just filled in the same sentence and it worked.
To much mandatory fields are not helping to get new users! It just sucks!