Agreed. I'm generally willing to forgive that though since (so far) it hasn't been a problem.

My gripe with bitcoin is that they deliberately made it inefficient. And as far as I can tell the solution to that problem (lightning network) is quasi-centralised.

Litecoin is the most practical currency I've used so far. Transactions cost pennies and clear in under a minute. You could actually use it to run a coffee shop.