I figured that would've happened ages ago considering Arthur's fame in the financial world.

People aren't really writing new systems in kdb+/q I feel like. And if you have a legacy kdb system why would you ever migrate to shatki?

If you have to make the choice between Shakti or some timeseries db + Python, Shakti would be a very suspicious choice. And I say this as someone who likes K and strongly dislikes Python.

Just gonna say, this is why i wrote KlongPy - an array language in Python that lets you interop with Python while also getting some array lang. efficiencies. Klong isn't as smooth as K, but it's still quite useful.

Are they not? What makes you think that? I honestly don't know myself, but am curious.

Maybe they already found all the high paying customers and now there's nobody left that will pay that much? No idea.

People are, unfortunately, but because of inertia, and less and less. kdb/q are great for experimentation but for large scale systems it's a pain to maintain and it's often slower/scales worse than other solutions.