Lucie / minutei really would like proper screensavers back. we can see in certain edge cases that burn-in is still a problem with TFTs (and i guess OLEDs), it's just not widely known anymore
Haelwenn /элвэн/ 
@mntmn IPS also seems to get a bit of burn-in but at least it seems to clear up fast enough to not be too much of a problem.
Plus I think it's a slightly different kind than CRT burn-in?