I thought the one lesson we all learned from Clippy is that this kind of interruption is more annoying than useful, I guess the new generation of developers have never experienced Clippy?
Also why would I need help when reading a blog post??
Also why would I need help when reading a blog post??
It's not about usefulness, not really. It's about engagement and retention - much like newsletter spam and annoying please-subscribe popups, The Metrics always apparently show that they work amazingly compared to a clean page.