Every once in a while (once in a day or two days) a post is rendered in white type on a white background.
This one, for example:
Why are a small number of posts rendered unreadable?
Here is a screen shot of the example. This was done in Windows 10 and I used Chrome as a commonly used browser.
Here is a screen shot of the tags screen you wished to see. I do not recall being in this screen any time in the recent past.