I have been trying to create a post in the Canada community. Scuttlebutt is that the post limit was set to 10,000 characters, but has since been set to 50,000 characters. My post has 9961 UTF-8 characters (9969 characters overall, 8396 characters excluding spaces) and when I hit submit the submission never completes.
Strangely enough, my character count is including all markup.