Why skip breakfast to learn a skill when you could instead micro master while intermittently fasting?

There is a wide spectrum of the amount of time, effort, and money it takes to learn various skills. This seems like a celebration of those skills on the small end of the spectrum that anyone can learn, whether they are practical or not.

Seems like a good idea to me, in an age where everything is either treated as disposable or outsourced.

I think the OP was saying it's a fancy term for nothing new. I agree with him (I note the term 'life hack' being used in the media for trivialities now). I'd agree with you too, learning new stuff is better.

Yes, we're giving a new name "to purposefully learning a bunch of easy-to-learn skills, that require smaller time investment, to boost confidence and use as a nice flow-inducing hobby".

The full phrase was a mouthful.

Seriously, the parent comment reads like the "Dropbox" comment (so they've just turned running curlftpfs, cvs, and ftp into a company now?)

I think you sometimes need a new word or term to better capture an idea. I quite like the idea of mircomastery. We'll have to wait and see if it's one that survives though.