When I quote an entire short message in order to provide context for my reply to it, the system deletes the quote. But the system doesn’t tell me about this - it just silently happens, making it look as if a strange error has occurred, which caused me to delete my post and try again, only to find that it still didn’t work, for no reason. Well, no apparent reason.
It would be nice if the system would refuse to add my post to the thread, give me a message that says “You can’t quote an entire message, please remove unnecessary parts”, and kick me back to editing my post. Or nice for all quotes to be accepted. But it isn’t very nice the way it is.