I believe it's part of the language design, a phrase you'll find quite a lot in Python language discussions, especially is more esoteric features is; "We're all consenting adults".
There are certain areas of the language which may not behave exactly the way you'd be expecting, if you're new to it.
These usually have an unusual syntax, which will cause you to find out more.
If you know what you're doing you cruise straight over, but if for any reason you're unsure, you're forced to find out more before continuing.
It's not designed to stop you, because "We're all consenting adults", but that doesn't mean it's going to encourage you to do something that might be harmful.
I was always told that if someone couldn't tell what your code was doing by glancing at it, you'd done it wrong and should re-write it.
I know that's absurd in practice, we don't always have the time but I've always used comments as a last resort.
If I need to comment code to make it understandable at a glance, so be it but I'd rather avoid them all together and rewrite until it's clear enough without them.
I'll probably be voting short term "stop this madness"