@Mr_NutterButter
Nah, people jump around too much even when proper bunny hopping speed increase isn't possible. It's not an engine thing. People just like jumping too much (I'm guilty of it too of course). At the very least, if it's a shooter, they constantly jump to dodge damage. But then people keep jumping around even when there is no one shooting at them anymore.
Also, I didn't use "bunny hopping" as a way to describe the Source glitch, I used it do describe the simple act of continuously jumping around.