Welcome!
> is Don still there?
Yep, working on the data science features of the extension.
> on Talk Python I remember specifically Michael and some others talking about the massive influx of money into Python and its ecosystem in the last year and half or so.
As I said there have been donations for PyPI and pip just got its big donation. The CZI donation was also much bigger than pip and covered a lot of the science ecosystem.
> Has the PSF ever considered having an actual business? Like say, consulting and/or having developers work on features that businesses pay to have implemented?
There isn't a need for the PSF to have a business subsidiary to accomplish that as people can donate money for such things if they truly wanted to. It's also really hard to manage due to tax laws in the US around non-profits and such. Plus there would be start-up capital costs, etc. just like any other business. I just don't think the risk of trying to get it set up would lead to any benefit when people have always had the option to donate directly to see if something could be done.
If people want to help out financially they can go to https://donate.pypi.org for packaging donations and https://www.python.org/psf/donations/python-dev/ for the language and CPython. And if someone wanted to fund a specific thing I'm sure the PSF is happy to discuss such an idea to see how feasible it would be.