I'm not a big fan of them either. For teaching beginners, its often "look at the help for this function, but ignore these bits for now", which is quite jarring.

I'm not a big fan of them either. For teaching beginners, its often "look at the help for this function, but ignore these bits for now", which is quite jarring. They are useful, but I think sometimes the advanced features run into the basic interfaces a bit, making it weirdly tricky to teach beginners without being confused.