Why was the comment that said "Don't format a floppy at the same time" funny when talking about threads and processes?

I was reading up the difference between Thread and Processes and came across the comment left by users in the second answer which stated

As so long as you don't format a floppy at the same time.

It has 27 upvotes but no one has explained the reason behind it .

I would like to know what the commentor means when he said the above comment ??

Can someone suggest a more meaningful question name which reflects what the question is asking

In the early days of Windows, a floppy could be crashed when the formatting process was interrupted because of the floppy disk itself was still moving. So, if the 'multitasking operating system' Windows really executes a different time consuming task, you had to throw away your floppy. So the funny thing is, that Microsoft called that mess a 'multitasking operation system'.