These are games I want to see on gog.com:

Flashback, Zool 1 & 2, Fire and Ice, Warcraft: Orcs & Humans, Highway Hunter, Stunts, Blues Brothers, Summer Games, Winter Games, Airstrike.....

Cool.

I take it you're not familiar with the Community Wishlist feature?
https://www.gog.com/wishlist

No I am not.

Flashback, Amiga version.

Flashback would be cool (already voted for it at the Wishlist). From your list, I would also enjoy Winter Games and Summer Games, I used to play the Commodore 64 versions with my father and sister, such great memories. :)

Go on there and search for the games you want to see on here. If you see an entry, you can vote for it. If no entries are out there, you can make one yourself.

A forum post about it really doesn't do much at all.

It does if he ask for a game that is already here.