Following up:
The posts eventually got through (I'm not sure of exactly how long, but it took around 30 minutes), and with how many times I tried submitting, I was expecting to delete a lot of duplicates, however, I only had one duplicate post. So most of my posting attempts didn't go through at all, it seems. When I did go to delete the duplicate, though, it took a long time to delete and I hit the Cloudflare error again; it took about another 30 minutes for the post to actually get deleted.
Things seem to be working fine for me now, though.
Gender:
Points: 72525
Reviews: 1220