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 will be presented with a CAPTCHA to complete, in order to post your comment. This has been implemented to ensure that humans are commenting on website scorecards.
- "Comment votes have been disabled for this site"
- When a site's reputation has become controversial i.e. there is a discrepancy 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 cannot "game" (abuse) existing votes.
- Only positive comment votes are removed when comments are changed. Negative comment votes will remain when a comment is edited, including changes to 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 comments.
- Source: Timo