PLEASE stop doing this thing where you hide the scroll bar when it's not being used, or make it invisible, or super thin and difficult to see. this post explains why. as an example of this...
this is a great post that I 100% agree with, and also as someone with Brain Problems I find myself looking at the scroll bar on web pages a lot for reassurance about how far through a particular long read I am, and hidden-by-default scroll bars are infuriating to me

