Saving a document as TXT is no good, Soulcatcher, because (as you of course know) that will remove all the formatting such as bold font, italics, bullets with indents and whatnot. The purpose of allowing the pasting from Word into here was precisely to make it easier to transfer formatted text – except that it never really works properly, even when using the dedicated toolbar button. The font in the forum post ends up being too small, even though it's OK in Word, etc. etc.
I'd say, just forget about pasting anything from Word to here; it's best to learn how to work directly in this forum software's edit window & achieve what one wants to achieve.