Are you still investigating the issue?
I've tried all the options on
http://cutesoft.net/example/editor-onpaste.aspx
and none of them strip the bullet character, and Paste From Word does not insert proper list tags.
If this is not fixed soon, is there a way to attach a function to fire only when text is inserted from the Paste From Word popup?
I've tried using a javascript filter, but these do not reflect immediately in the wysiwyg, so the users are confused.