Currently any Ask/Tell HN stories are very hard to read for me, since it's gray text on yellow-ish background. Most UI on HN has a color contrast of 3.54 (Foreground: #828282, Background: #f6f6ef) and it's super uncomfortable.
I know I can increase the zoom or write a chrome extension to change it, but I think increasing HN's color contrast overall could help lots of readers.
That's one of many passive aggressive bits of operant conditioning pg originally added for quality control - meant to punish text-based posts by making them more difficult to read the longer they are. This is to discourage people from using text-based posts as an ad-hoc blogging platform, and make them as short as possible.
So no, that probably isn't ever going to happen.