I can post pics in here, not sure for sellers if that's what you meant and if you go to the far RHS at the top of any thread/group you want to follow you can Float it so it stays pinned for you.

You can sort newest to oldest and unless you are replying on a really old thread that can't be bumped your post should fall into place under the one you answered like this one will

I don't like the format, but I doubt it's going to change.

edited to say: Your post is a great idea, and I will no doubt be back with some bullet points LOL