That's the good old Easter eggs, perhaps a memory from when Reddit was a nice place. They stop appearing and are replaced by dark patterns once sites jump the shark.
I reod some people use false slugs in the robots.txt as a honey pot of sorts. IPs that actually read the robots.txt, ignore the disallow, and still access the uri are outright banned.
It might be related to the time few years ago when Google added exclusions for user agent t1300 in regard to its founders. Gort seems to be a robot from old scifi and bender might be something similar.
