I’m afraid pasting from MS Word can be a bit of a minefield, yes. Word includes all sorts of superfluous formatting information when you paste into a web browser. The BAA forum is supposed to strip all of that out and just leave your text, but sometimes it doesn’t do a very good job of it.
I’ve done a quick edit on your post to remove some of the junk, and hopefully not too much of your actual text.
I personally tend to paste text from MS Word into MS Notepad, and then from there into the website. Notepad is a really simple no-frills text editor, and completely removes any formatting which may cause problems!