One possibility is that they invest heavily in Teams and Jobs. Those two both solve problems that many teams really struggle with and would be willing to pay a premium for tools to help them solve: documentation and hiring.

My crystal ball says...

* Improve channels from Stack Overflow to other properties - kind of like what they tried to do with the Developer Story, just with more reason to do it. ( https://www.pluralsight.com/newsroom/press-releases/pluralsi... )

* There are a lot of eyeballs hitting SO, and a lot places to send people - https://www.prosus.com/companies . As they control the server, they can inline those ads more easily.

* Job portal expansion. Supposedly this is profitable now, just not VC deals profitable. There are quite a few classified sites that Prosus has already.

* Expand links to edtech - Skillsoft, Codecademy, Udemy to name a few of them.

* Have the resources to spend on making that enterprise content product if it's not too late (Atlassian and Microsoft have been there for a while). People kept wanting a SO instance they could host locally. They were willing to pay a bit for it (but not the Big Tech prices that SO was supposedly selling it for). SO tried to do this with Teams, not sure how well that works/went. So, maybe they'll get that product finally made.

by that logic hn is worthless too, yet I bet it created a lot of $ for yc