The 'User Settings' page lets you control whether an ad's “stats” are viewable by the member.

Display the number of listing views

If you want your members to see the number of times their ad's details have been viewed, then choose “Yes” here. Otherwise, choose “No”.

Display the number of views through search

If you want your members to see the number of time their ad has been included in a visitor's search results, enter “Yes” here. Otherwise, choose “No”.