I’m a writer, copywriter and web designer … so typography is important to me.
My biggest problem with (read, “criticism of”) many modern websites is the poor choice of font size and contrast. Too many small fonts and too much light grey.
Medium is suffering from this too.
Below what I’m writing are the words “Add a tag…”. The choice of font family, colour transparency, size and weight means I can hardly see it.
This is making me and your other readers work too hard. I try not to inflict this on my clients’ readers.