This site has one of the most annoying paywalls I've seen.

As you scroll down, the page loads the next article. The paywall script detects this as you trying to read another article and throws a pop-up about how you read 3 of the 6 free articles you have.

Much to my annoyance, it doesn't let me return to the kafka article but redirects me to the article it auto-loaded. Even if I go back, the same thing happens.