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by floam 249 days ago
Oh, TIL. I guess in this case it couldn’t have been since you can’t submit if too long but I was unaware.
1 comments

Could be one or the other, or both, but the filter's definitely there.

Fair warning HN also automatically replaces submitted links with canonical links despite most canoncial links pointing to the original domain for SEO purposes. There is no warning or feedback for any of this, you're just expected to notice and edit your post after the fact.