Compose in Word, spell-check, then post to Audiogon.
Although it can sometimes be pretty comical when people over-rely on spell-check, and don't bother to proofread what they've written. Spelling and grammar checkers often will not flag an error in which the words are spelled correctly, but the wrong word is used.
A while back I had occasion to create the following test sentence. The spelling AND grammar checker in Microsoft Word 2002 did not pick up any of the six errors I introduced:
Intended sentence: "I wish to convey my compliments to the chef."
Sentence with 6 errors introduced, none of which were picked up by Word 2002's spelling and grammar checker:
"I wise to convoy me complements two the chief."
-- Al :)