[Arkcon]

Warp opener/closers shouldn't be allowed on bases. You must have one movement point to activate them, so they'll never work. Several patches before Gold, you could put emergency propulsion on a base, and give it movement points, without giving it movement, because it had no engines. But even then, the warp closer/opener didn't work. So that was patched out.

There's lots of things like this remaining. Satelites can have supply components, and self destruct components, even though they need neither.