An example is the advice that "Software engineers should write regularly." Why? Can't you be an awesome dev if you don't write? You definitely can, because I've met hundreds of great devs who've never written anything that you'd call 'writing'. Devs who enjoy writing, and get something from writing, should absolutely write things. If you're a dev who doesn't enjoy writing then you probably shouldn't force yourself to do it just because someone said it's what devs should do. Find a different outlet that gives you the same thing other people get from writing.