I don't see it on my posts anymore, where you could click it and see pix of people's cars and stuff. Maybe not many people used it. It's gone right?

 

I've not used it. There's a tab called Gallery at the top of the page, and a button on that page says My Gallery?
https://www.northamericanmotoring.com/g/

If I go to your profile, I can click on your gallery. [Click on TheBigNewt and then view public profile, the link to the gallery is in the right column.]
https://www.northamericanmotoring.com/g/album/3755076