My latest MASSIVE pet peeve is headers and footers that appear or disappear as I scroll on my phone.
So when I go to scroll up, all of a sudden the header appears and moves everything I was looking at so I lose my position. Then when I go to scroll down they all disappear and everything moves yet again.
So when I go to scroll up, all of a sudden the header appears and moves everything I was looking at so I lose my position. Then when I go to scroll down they all disappear and everything moves yet again.