Why don’t you conduct an experiment? E.g. you could award prizes only for posts/comments written by users whose usernames start with letters A-L (and whose accounts were created prior to the announcement) and see if you notice any significant difference in the quality of those users’ submissions.
Why don’t you conduct an experiment? E.g. you could award prizes only for posts/comments written by users whose usernames start with letters A-L (and whose accounts were created prior to the announcement) and see if you notice any significant difference in the quality of those users’ submissions.