When using the space bar to scroll down by a page-height, the top bar covers up the first few lines of text at the top of the page. This effectively breaks the ability to read a thread and use the space bar to scroll through it.
Can’t repro this at the moment. The spacebar scroll length may be a bit less than a page but it is never more for me? What browser?
Here’s a screenshot of me at the top of a topic on the left, then after I press space on the right, in Google Chrome… it scrolls less than a page, but not more so that should be OK yes?
No repro: plus you can use j and k anyway which work betterer