It absolutely matters whether it's a new address every time or the same one. On-chain data is forever, most other data is not.
Lightning zaps have plausible deniability. On-chain zaps don’t have th...
You can do that attack regardless of on chain zaps or not. I can attach child porn to your pub key on chain if I want to. Anyone can do it. Hiding it won't make it go away.
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