🕸Fergus Duniho wrote on Sat, Feb 19, 2011 08:21 PM UTC:
It's a byproduct of enforcing a single character encoding for the whole
site. I have been working on converting the site to UTF-8. The headers now
tell the browser to display each page with the UTF-8 character encoding.
But some pages were written in Latin-1. Until the Latin-1 pages are all
converted to UTF-8, these diamond question marks will be appearing on the
site. In the meantime, they identify what still needs to be converted.