Looks good in Firefox on Windows. I'm not on a high DPI monitor, which can certainly mess things up.

Taking a screenshot and zooming in with a pixel grid, the 'i' on comedian is antialiased to 3 pixels in total wide, though the 2 on the side are very light. Firefox is 2 pixels wide, but both columns are dark. Chrome is also 2 pixels wide, but the columns are rather lightly colored.

(Windows' native font antialiasing is amazing, I'm sad all apps don't use it...)

It's legible in my computer. Debian 8, with Firefox, no-script, and ublocker, with 24" screen and a forced minimum font size of something that I don't even remember.

Anything of those could be making it legible. I'd rather trust the opinion of somebody with a more standard system, and I doubt the GP is that somebody either.

It looks good for me in Firefox on Xubuntu 16.04.