I have been considering using the the_editor function to create WYSIWYG editors in my own pages. Is using the WordPress’s inbuilt WYSIWYG editor in a plugin meant for general distribution advisable? Is it considered a part of the API that we can rely on to not change and break the plugin in future versions?
Is Using WordPress Supplied WYSIWYG Advisable?
Yes using the built in editor is the right way to do it. WordPress prizes backwards compatibility so the function should continue to work forever.