I don't keep a "dick bar" that sticks to the top of the page to remind you which site you're on. Your browser is already doing that for you.
A variation of this is my worst offender, the flapping bar. Not only it takes space, it flaps every time I adjust my overscroll by pulling back, and it covers the text I was trying to adjust. The hysteresis to hide it back is usually too big and that makes you potentially overscroll again.
Special place in hell for those who hide the flap on scroll-up but show it again when the scroll inertia ends, without even pulling back.
Can’t say here what I think about people who do the above, but you can imagine.
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