CASE FILE: User-submitted codes filled coverage gaps, grew long-tail traffic 33%

CASE FILE: User-submitted codes filled coverage gaps, grew long-tail traffic 33%
A deals site opened a 'submit a code' form with a verify-before-publish queue. Confirmed over a quarter: users submitted working codes for 1,400 merchants the site had never covered, and long-tail organic traffic to those new pages grew 33% — entering merchant searches competitors hadn't.
Why it matters: your audience knows codes your scrapers never will. Moderated UGC is a free coverage engine.
Sources say roughly 30% of submissions were valid after verification — manageable with a one-person review queue. Developing as they gamify submissions with leaderboards...