The discussions are the reason to come to Slashdot, and the beta trivializes them entirely. It looks like the comment section on a generic news site.
The comments now look like an afterthought, whereas they used to be the primary focus of the site."
Unreal is used for FPSes, as well as 2.5d side scrollers like unmechanical. People were building flight sims with the Quake 1 engine (Airquake). Simply having a 3D engine doesn't shoehorn you in to a particular style of play.
Not just Quake. A little over a decade ago I worked on a vehicle-based total conversion for the original Unreal Tournament that centered on air combat.
Kill Ugly Processor Architectures - Karl Lehenbauer