Our web developers told us to use Microsoft Notepad instead of WP text editor/paste and WP Word editor/paste b/c even the WP editor tools might preserve old formatting. Is this true? So far it's a pain to use Notepad.
When I copy and paste text from Notepad the plain text appears in a small font (format then right below it, the same text appears again but in slightly bigger font (the same font as WP "paragraph" formatting for WP).
I have to delete 2nd version of the text (the bigger font), but then I notice that the 1st version needs to be in "paragraph" format (My assumption is that it must be "paragraph" so that it translate to my website CSS. Is this correct?). When I change the text it increases to the same size as the 2nd version of the text I'd just deleted. So what's the point of using Notepad, I say.
Main question: can I rely on WP text paste to remove all outside formatting?