

Mostly vendors. Often on-prem versions customized for their sensitive work and the versions are 30+ years now.
They very much go by the mantra “if it ain’t broke, don’t fix it.” If you’re lucky enough to get one of those contracts, you’re on a gravy train, but brace yourself because you can expect to get a lot of complaints about how outdated and crap your system is. That and a whole lot of time dedicated to training and documentation.
You’ll also get the occasional person’s personal monument to themselves. “Joe’s been doing that GIS stuff for 30 years.” Whew those can doozies.
I’m much more a fan of the PBS/NPR underwriting model. Tell me who deliberately funds the show or video.
When the advertisement is so divorced from the show, is not relevant to the conversation or is not relevant to me, then the andvertisers are wasting their money.
If you show me the same ad over and over again, I am actually more likely to NOT buy that branded product or service because I’ve become so annoyed and numb from the ad taking what little time I have on this planet that I will actively boycott it.
However, I do have a nice space mug from PBS, a plot of land on Mars, the moon and Scotland, and a t-shirt for the Truth podcast to prove that I will spend money when the advertising is relevant to the content I’m consuming. So if you want the ad to work, invest your dollars directly into the content and providers I care about.
But for the love of everything, do not think for a moment that your contribution gives you license to control their messaging or content.