As with any online system that allows users to post textual comments, there will be abuse such as spam; see also: Spam in blogs
- registration date ≤ 7 days from current date
- To reduce spam, a post limit has been implemented. New registrations to the forum will have a 10 minute waiting period between postings on the Forum or Blog. This restriction is for all registrations that are up to one week old.
- WOT incorporates Mollom
- A CAPTCHA has been introduced to control Scorecard comment spam. On every 21st scorecard comment, you are presented a CAPTCHA to fill in to post your comment. This has been implemented to ensure humans are commenting on website scorecards.
- "Comment votes have been disabled for this site"
- When a site's reputation has become controversial meaning there's a disagreement between high and low ratings, the ability to agree or disagree with existing comments is deactivated. This is an automatic response from WOT and is not an action taken by WOT Staff.
- The comment owner can not "game" (abuse) existing votes.
- Only positive comment votes are removed from the comment, negative comment votes remain when a comment is edited, including changing the comment category.
- source: Timo
- Comment requests have been disabled from users who aren't logged in
- Source: Sami
- On the new scorecard only site owners can request a comments.
- Source: Timo