Opt-In 'Seeking Crit' Option

DeviantArt had a function like this at some point, not sure if it still does but it was a checkbox that could be ticked on the upload page that would add a prompt for critique to the post. Unsolicited crit can be off-putting to potentially destructive to whose receiving it, so an option like this to designate when user's want crit and advice would mitigate guessing if someone does actually want that feedback.