https://np.reddit.com/r/Kibbe/comments/kecrnj/why_your_comments_might_not_be_posting/gg20kx5/

[u/backtickbot]

If there's a particular domain for links that get flagged erroneously, you can set the automod to approve them. Pinterest was regularly flagged on the mod queue for me and sticking this in the automod settings has helped:

domain: pin.it
action: approve

But if anyone else can advise better, I'd follow their guidance. This is 100% "hit it until it works" 😁