I found something that seems to work (but maybe it doesn’t always???).
Changing the text and trying again won’t work, once you’ve been flagged as possible bot.
But I can post an Image (screenshot), without any text. When that get’s accepted, I can go in and Edit the Post. Like I said, not sure if this always works, or if it works for everybody and you still lose the first response, but…
Well soon we’ll be transitioning to a new platform anyway and hopefully won’t be bothered with something like this again.