Moderators are volunteers who visit the site regularly. They cannot be expected to spot all content that someone may find questionable.
If you consider a breaches one or more of the forum rules this should be reported to the relevant moderator without delay.
To do this goto the 'Categories' tab. Click on the category with the abuse and the moderators for that category will be listed in the bottom right hand corner. Click on a moderator and send them an Email or PM.