Nothing inferior about Webkit these days. The thing that is really inferior is the HTML editor in Moodle up to 1.9. Moodle 2.0 uses TinyMCE, which works in many more browsers. Of course, there are still mobile phone broswers where that does not work.
Basically there is no good way to handle plain text with < symbols on those browsers at the moment. I feel that the essay questiontype is overdue some love. There are lots of minor features like this that would be relatively easy to do if someone just sat down for a week or two to work on it. For example, I would like to add:
- Way for the question creator to choose the size of the answer box (MDL-6535)
- Let the question creator choose whether the essay question uses the HTML editor or plain text (MDL-10861)
- Let the question creator imput some information that is displaid on the manual grading page to help the person doing the grading. (MDL-11080)
- (This one is hard, but is on the OU's todo list) Let student's embed images or attach files to essay questions. (MDL-8229)
Once you have done 4, so question answers can have files associated with them, then it opens the way for other cool manually graded question types, like "record some audio" or "paint a picture".