I do have idea for a possible cool new feature for "slicer" like software generating gcode from models
As it can be seen in this video:
there is probably not much of a difference when it comes to printing with tilted or rotated printer in the angles of 90 or 180 degrees.
The author sais he don't see any practical use for it, but I thought about it more thoroughly.
If you rotate your printer by 90 degrees you can print supports which has a body of a print as a baseline instead of the hotbed.