I'm not sure why you talked about Daily Kos except for the fact that they're both left online news resources.
Other than the fact that Daily Kos and Vox were both founded by Markos Moulitsas there's no connection at all.
"We're confident that there wasn't any material impact on our journalism from these issues
Daily Kos (aka Vox) was always a blog, it has nothing to do with journalism.
I would have thought the breach at Ashley Madison would have done them completely in on reputation loss alone...
Reputation loss? Ashley Madison? You must be joking.
Efficiency isn't everything. Generating excess electricity when you don't have a demand for it means you need some way of storing it, or you just dump it.
So now you need to figure out how to store all that energy until you can deliver it to the train when the train needs it; liquid fuels are very good at that. Even if producing it doesn't use the excess electricity efficiently it's a reasonable trade-off. I'm sure they considered batteries and wires, apparently they decided hydrogen is worth trying instead.
Does the SolidRun "destroy" the Pi? From a raw performance perspective, absolutely. That cannot be denied. Some folks will take issue with that claim due to the price difference, and I understand that point. But again, just looking at performance and potential, it is no contest. If a Raspberry Pi 3 meets your needs, however, then more power to you.
what technology does it use if not solar panels?
Hot air. Which is used to inflate the price of Musk's stock.
The end of labor is to gain leisure.