J T

I can see Zip's ad as the screen capture shows.

Regarding others not seeing any ads other than DeWitts', it's because (as some have disclosed) their usage of Adblock or other 3rd party plugins to browsers that is deliberately blocking ads. CorvetteForum can't support the usage of such plugins that block and/or re-write the webpage. That adblock plus blocks some ads and not others is not up to CorvetteForum but is the way adblock plus is functioning.