I really, really hate the "quick quizzes", which completely disrupt the flow of the article to the point I stop reading. I find them so annoying that they completely spoil otherwise nice articles.
If need to stop and think, I'm quite capable of doing so on my own. I don't need to be _prompted_ for it by some patronizing not-quite-textbook.
If I don't retain the material on a first reading, this is what bookmarks (or google) are for. I don't need some professor to whap my knuckles for not "paying attention". Of COURSE I'm not paying full attention, reading this is competing for my attention with 15 other things. The time I can carve out that's uninterrupted and in large chunks is going to be spent _coding_ (either writing new stuff or reviewing other people's code), not trying to close browser tabs.
There's probably a _reason_ nobody else writes articles this way...