I join my voice to @magicandre1981 (same glasses?) :
"Text font is too thin, so same eyestrain like on SO
"Text font is too thin, so same eyestrain like on SO."
I'm not referring to the text of posts or answers, but for example to the lists of posts. The black is more readable after zooming into the page (which is not really a good solution), but the blue is too faint to read without strain and even more so for posts that have been visited.
Here is an example of how fuzzy is the text for a link to an already-visited post (I am using Firefox):
As a general remark: All the colors seem to have been chosen too faint. The too-thin font makes colored text especially hard to read. As Mac users don't seem to complain, it's possibly a Windows-only problem.
For my fellow sufferers, I am using Firefoxhave developed a GreaseMonkey/Scriptish script, based on work by @Vinayak, for making the text more readable, found here.