I personally use it for amounts starting from 30c.

But two questions should be answered. How micro is micro-payment? Popular fee right now is at 0.0001 BTC which corresponds to ~0.04USD, which could be considered not very "micro-fee". And other question. Single transaction real cost right now is around 10USD. Payment fees are low, only because they are hugely subsidised by block reward (25BTC every 10 minutes). What will happen when block reward will go down 2, 4, 8 times?

And finally, quote from LN whitepaper:

> If all transactions using Bitcoin were on the blockchain, to enable 7 billion people to make two transactions per day, it would require 24GB blocks every ten minutes at best

If the block size is increased, a lot more transactions will fit in a block, so transactions would get much cheaper.

And while it's a great goal to have all monetary transactions use Bitcoin, that is very very far from reality for now.

I agree. Increasing block size to 4-8 Mb is probably safe. And it would encourage more adoption. At this moment, unfortunately, confirmation times are close to unreliable.

> If all transactions using Bitcoin were on the blockchain

Seems like this premise is flawed. That said, I see your point. Will keep this in mind when testing different transaction sizes.