It is hard to read on screen with the current serif font. Please kindly consider to change to sans serif fonts such as Arial, Droid Sans, Georgia, etc.
Serif fonts are only good for printing.
The font used in this site is not good for on screen reading?
As Nigel J pointed out in the comments, we are improving our fonts usages in our systems starting today, May 10, 2021.
There may be some initial delays amongst some individual sites as well as some unforeseen delays due to bugs, etcetera, so some degree of patience may be required.
Apparently, as of one hour ago this feature went live!
Apparently, Christianity SE will not be changing.
Sites like Christianity and English will still be displayed in their custom fonts.