On labtrove.orc.soton.ac.uk
The MATLAB code formatting option turns all greater than symbols (>) to html code (>) when post is published. This prevents efficient copy and pasting of code back into MATLAB. I'm not sure to what extent and what symbols this is happening, and whether this is purely in the MATLAB case or other languages too.
Dave, this may have happened during the recent set of changes that caused the matlab code to be formatted incorrectly and which you subsequently fixed.
Is it related?
This has been fixed as of revision 842.