I was thinking I saw 511 (or 512) somewhere, but the one I've been working on is 723 characters. When I trimmed it down to 716, I was able to post it. Oddly, I had another post to make at a different venue, but with the same description. When I copy/pasted from the 716 one, I got the error again and trimmed it down to 701. I also see that some formatting characters are removed from the post (like paragraph breaks), but my shortest one still ends up being 692 after LL does its reformatting. Makes it a little hard to tell anyone something definitive about where the threshold is.
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