Some of those projects sound very interesting, but potential and actual productive output are very different things. They have potential. But you can't pretend like BAT, for example, is out there revolutionizing the ad industry, because it isn't yet. I can't even find Brave market share numbers, but I am confident they are miles away from even reaching 1%. It has potential, sure, but that's a long way from the real thing.
Same for the others. Golem is a nice idea with a lot of potential, but as of right now, Azure, AWS, and GCE are where programmers go for rentable computer power. Maybe one day that place will be golem. Maybe not. Right now it is all just potential.
I think part of the parent's point is the potential of crypt-currencies is often touted, but so far little has been shown in actual results. How long until there are actual results?