Excellent. 3D models, such as this one of the Aqueduct of Fréjus are appearing in 3D Warehouse with links to Wikipedia, and this means that Wikipedia will soon be linking entries to objects, when relevant. A great idea.
What to do, however, when you want to comment on the object itself? For example, the above-mentioned model disappears underground when terrain is turned on, so it requires a fix. But reporting a “bad item” is a rather heavyhanded response, and it’s not easy to get in touch with the author.