Forum with Pins/thumbnails instead along with topic title

I was wondering since I find there are similarities between a forum and warehouses like that found on the sketchup warehouse, blendswap, opengameart and gamebananas,
example links:

maybe there can be a FOS Platform/Framework similar to discourse
that people can use to host for their own community.
The main difference is having pins instead of thread titles. where you can browse by thumbnails
and like a bit of meta data. like author and say if its a 3d model how many polygons it has etc.

You can do this with the Topic List Previews plugin. We use this for the galleries on Blender Artists.