[jolmg]

The issue that was raised isn't just about the Spacebar. It's about scrolling by full-pages, so PgDown/PgUp would also have the same problem when a page has Sticky Headers.

I guess you can make the same argument that it's possible that people don't use PgDown/PgUp either, but that's besides the point, I think.

Generally, interfaces have a lot of features by default and when a particular interface breaks or removes them for no good reason (and I don't think I've ever seen a sticky header that could justify it), well that at least leaves a very bad impression. It's wasteful.

Same goes for links and buttons which are made to work only when clicking with the mouse, when by default they work with the keyboard too. Same goes for text which is set with a fixed width and necessitates a large minimum window width to read properly when by default text adjusts to a window's width. etc.

Nobody is average, so the world would suck if it only worked for the average.

For the record, I do scroll with the spacebar. I like to skim pages as quickly as possible, and PgDown is in different positions in different keyboards, so I just find spacebar to be super-accessible.

[compressedgas]

Also links that can only be activated and not "Open Link in New Tab". Those onclick script links. Every link should have an actually URL in its href.