OK. Repeated my last post exactly:
Quote from: saratogaWX on Today at 14:14:22
Are you using the Reply button or the Quote button or the Quick Reply area on the page?
Reply or Quote, never Quick Reply - but it happens with new posts, too.
This is a Safari reply with copy/paste text
Quote from: saratogaWX on Today at 14:14:22
Are you using the Reply button or the Quote button or the Quick Reply area on the page?
Reply or Quote, never Quick Reply - but it happens with new posts, too.
This is a Safari reply with copy/paste text

So that seems to work!
Getting late now, I'll maybe try some other options tomorrow. . .

P.S.
Your browser must be cursed somehow with the extra [font] and [size] markups inserted.
. . . and @hofpwx's browser.