It’s hard to get much more chickenshit than this:
So, I blocked a person on Snapchat I was talking to, and then unblocked them to send one more message, and then blocked them again. After I blocked them, our chat completely disappeared. Will they receive my final message?
Why would you care? You’re the one wielding the block here.
And while we’re at it, are there any other invertebrates in your family? Assuming they’ll admit being kin to you, I mean.