Understandably annoying. But, we're all grown-ups here and of reasonable intelligence. Sufficiently so to realise the spam is spam, and not of your doing or intention. It does, however, illustrate where Nostr shines amidst the hubris of centralised and increasingly Orwellian social media platforms. The porn is a good sign, actually. Ironically. 95% plus will either ignore it or report it, and it increasingly loses its disruptive, shock value the more originator keeps on doing it.