According to the spellchecker in the HTML Editor (TinyMCE), Moodle is spelled incorrectly.
It recommends spelling it: N-O-O-D-L-E
I am obviously making a joke with this comment, although it seems like it would be a good idea to add Moodle to the list of correctly spelled words. Perhaps this cannot be done on all systems, since they might use their own dictionaries. At least it could be done for moodle.org.