As you probably have noticed, all text using DText (i.e comments, blips, wikis, and the forum) has had their font size increased to 16px.
This wasn't directly mentioned in the site change log, but instead rolled out as part of Mobile Fixes.
Cinder said:
1. Enhancing Readability
Increased the font size in DText to 16px. This is less ideal than changing the global font size, but a quick fix will do for now.
A larger project for updating the font size to a more reasonable one will be coming later.
This could probably easily be fixed with a custom CSS style, but I don't know CSS, so you will have to wait for someone else for that.