This is a high level category. Please do not add individual profiles. Add profiles to the narrowest category possible. See How to Categorize.
The Clean-a-Thon is as yearly Challenges in which participants try to clear out as many database suggestions as possible. Below is a listing of teams that compete in this challenge, to see who can clear out the most suggestions.
See the CAT category for the CAT categories by year.
This category is managed by the Data Doctors Project in association with the Categorization Project. For assistance with this or related categories ask in G2G making sure to tag your question with both categorization and Data Doctors.