system
A chat on subreddit /r/pcmasterrace
human
&gt; VGA is hot swappable though

This was not universal, I believe the standard was hot swappable, but in practice it was not so much.
gpt
What?  It's an analog signal, and back in those days video chips weren't generally designed to stop outputting a signal when a connection was unplugged. 

I've never experienced or heard of any problems with hot swapping a VGA cable. It's probably the most hot swappable cable I can think of.