A few weeks ago I remember all the text across the site suddenly changed one day. Since then there are a lot of answers/questions that say "things in bold are...." but I don't see anything as bold? In fact, the text in questions and answers just looks strange to me. Is this just affecting me?
This is caused by a combination of things on your end, most likely fonts installed on your operating system, your browser's choice of rendering, and the zoom level of the page. The site has no control over these things. Zooming especially is not supported by SE.
For reference, the font-family of the site prefers Arial, then "Helvetica Neue", Helvetica, and finally any sans-serif font. So to address this locally, ensure:
- Your browser is up-to date
- You have Arial installed
- Your zoom level is set to 100%