I suggest providing an additional format for more, noteaser and nextpage, because the current format using comment tags does not work very well with WYSIWYG editors like TinyMCE (they still get inserted into TinyMCE edit area but are not visible).
Example: [more], [noteaser], [nextpage].
p.s. am very excited with v2.1.x. Waiting eagerly for the stable release to upgrade. Thanks a million for this wonderful piece of software!