Use the report button for this, its the icon you can find on any post with the "!". Generally this might be used for spam or other things but you can use it for any problem. While a PM to a moderator is fine the report button will alert any moderator to any problems. You can even report your own posts if for example you made a double post. Other things you might want to use it for is reporting dead or changed links in old posts, many times people post links and the resource may no longer be available they were linking to and it could even link to inappropriate content which of course wasn't the authors intention. Whatever the case may be we want to remove anything of this nature so you can help by reporting them if you come across anything like this.
Thanks for your help.