In fact, my very very first recollection of hearing Lightning was how it could be used to make sub-satoshi payments (less than 1 satoshi), if I recall, it was a discussion about what happened when 1 satoshi was worth more than 1 cent or more, so I actually only came to know about LN being off-chain and for micropayments a bit later.
I think, personally, a micro transaction for me is anything that would be worth around the min fee in coins I'd pay for an on-chain tx. This is around 141 satoshis for me now. Though I suppose paying 141 or 10% fee for a 1,400 sat spend is probably a better gauge of what should be micro.
Blockstream goods are all under $3. Maybe that's their idea of what's micro?
Can anyone point me to some good run downs of where micropayments will transform things?
Right now micro payment to me appears to be asking for payment for something that was previously free that I don't value anyway that I'd rather go without than pay for such as articles or vids. I suppose there is that much fabled coffee.
I would've thought machine to machine stuff is where lightning networks will end up shining.