Pretty sure that, when I had "hide accepted" chosen, they stayed hidden.
Now (not sure when it started, but it's been a couple of months, at least?), when I'm reviewing downloaded transactions, some will show as "Accepted" and the button will read "Show Accepted" (meaning, I thought, that "hide" was turned on). I have to select "show" and then "hide" again to get my accepted transactions to be hidden.