Here are a few blog posts where the author name is broken link:
- Programmers: Tools are not skills — broken link to Ed Woodcock
- Programmers: Why CS teachers should stop teaching Java applets — broken link to Andrew Thompson
- EL&U: One Language, Many Voices — broken link to Barrie England
- Islam: Introduction — broken link to AlUmmat%D9%85%D8%AC%D8%A7%D9%87%D8%AF
Programmers and EL&U have a number of other blog posts with the author name as a broken link, but only for some of the posts. I've only seen the issue when the author name includes something which renders as into html with a % escape character, e.g. a space, but not every instance of an author name with a space leads to a broken link (for example). Seems like a case of failing to link to user name and instead linking directly to a display name? Or something along those lines.
A few blog sites were checked, and the problem was only seen on Programmers, EL&U and Islam but if whatever engine is powering these blogs is powering any other SE site blogs, then the problem also likely exists elsewhere too.