Mark I really would like to have a WYSIWYG editor here

I would like one too and have looked at a bunch of them and even tried incorporating a few, but none have worked correctly.

The last attempt was about 2 months ago. I tested it extensively on another forum that's used only for testing modifications before incorporating them into this forum, and it seemed to work flawlessly, but after incorporating it here I started getting reports of users getting SQL errors.

The one we tried before that was no better. If ever one is released that works correctly with myBB though, we'll definitely go with it.

Have you tried TinyMCE?

Yep, that was the first one we tried over a year ago, and lots of people were complaining about getting Missing Subject or Missing Message errors when they tried to post, and their mesages disappearing.

Also tried HotEditor, and a couple of others.