As someone who really understands the feeling of frustration caused by unfair censorship - I'd like to point out that Daniel, the HN admin, is a very chill and understanding dude.
I'm sure if you contact him at hn@ycombinator.com and ask politely, you'll either get un-shadowbanned or a very good explanation of why not. He's a person, like you or me, not a personification of megacorps.
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Alternatively, you can keep doing nothing but commenting about how oppressed you are. That's also an option. It won't accomplish anything, but it would feel very pleasant for someone with persecution fantasies.