Wow -- quite a few chuckles there...
As a went down the list I couldn't help smiling and chuckling at some of the entries. So many are computer based and some I hadn't thought about in years. I can remember punching a hole in a 5.25 floppy to make it double sided, that sure brings back memories. I have half a dozen boxes of 5.25" disks stored somewhere, but I'd be hard pressed to find a 5.25" drive to see what is on them.
To be honest some are pretty obscure, quite an odd list if you think about it, but he is right those are obsolete skills by any measure.