The post was not accepted. It was caused by me attempting to use Reddit's site-wide spoiler tags. They look like this:
visible text >!spoiler text!<
Removing the spoiler tags allowed me to submit the post.
I don't care that SaidIt doesn't support that spoiler tag syntax, but it might be better to accept the text verbatim instead of issuing an error.
Just thought you might want to know.
https://files.catbox.moe/b79uui.jpg
there doesn't seem to be anything here