I love the "this guy" piece... Meanwhile he's been the most public person in academia talking about databases over at least the last 5 years, maybe the last 10. He's not only done an awesome job of talking about foundational pieces of databases, but also examining new databases that have come up over the last 10 years or so. He's course is quite open as well, so it's not just the student base that gets to take advantage - https://15445.courses.cs.cmu.edu/fall2023/

The shirts he's generally helped promote and publicize those companies so he has things to hand out to his students, TAs, graduate students.

Those ads you are seeing above the comments are from the comment service, Disqus. Unless you pay 12$/month, the comment box iframe will inject ads.

These are not ads directly added by "this guy", but rather by his choice of using Disqus for adding comments to the site.

Seems like everyone here is running an Adblocker! The post uses Disqus for comments and has the built-in (garbage) ads enabled.

I think it's likely that the OP uses an adblocker too and never even saw the ads on his own site.

Lol all the people with adblockers saying "leave him alone there are no ads!"

For extra evil Discus should really pop up an ad blocker blocker.

whats clickbait about it?

it looks like blog about how he likes his t-shirts

I can't see any ads - although my firefox extentions will be blocking them if there was any

There are no links to buy any of the shirts on the page. It's a tongue-in-cheek comparison of startup swag.