we need to put on the "post a comment" page a note stating that there is a 4000 character limit.
this has frustrated many a user.
Way to do this:
write There is a 4000 character limit when commenting a response or something like that (can't word it right).... on the "post a comment" page... preferably before the text box where you type the response.
so this won't happen again. there should be somewhere that states the limit.