Well, the way that Hank's unofficial list ended up working was, if you had a killscreen you got on the list, afterwards, if a killscreen player increased their PB, the list would be updated to the killscreener's PB. The list documented all kill screeners but at the same time was ranked by their PB.
So, if you want to update your list, remember BIlly Mitchell's 1.06M game was killed off on level 21. no killscreen. My 1.026M ended on level 21-2, not a killscreen (although I have 3 killscreens in previous games 914K, 998K, 1.015M). And I see you have Tim S's right.
So, was not quite sure what your goal was with bolding. I'm a "killscreener" but my PB isn't a killscreen, same for Billy, and Tim S. They all have killscreens before, just not their PB. Same with Eric Howard 957K, not a killscreen but he killscreened before.