The Twitter contest is open for everyone. No further requirements are necessary to participate in this contest. You don't need to buy or do anything else on your part.
Winners will be randomly selected every couple of days until the end of March. The prize is a special and limited CKEditor 10 Year Anniversary T-shirt.
Be mindful of Twitter rules and respect your followers when retweeting. We will closely monitor if you are following Twitter rules. Multiple winners will be chosen so let your friends know about CKEditor's celebrations!