Just waiting for "Show HN: Repent, sell your house and car, invest everything into eternal-salvation.ai before it's too late and you're left in the dust as we ascend to the stars!"
No idea who this guy is but if I was in his situation I would also do the same. Accusing him of being an informant over this seems a bit extreme. It is a well known fact that various law enforcement/intelligence agencies will try to establish ties with people in such positions.
Spagni stole money from a company, presumably to fund his crypto investments.
It isn't all that unexpected that the Monero founder is weird and has a colourful backstory. He'd have to be odd to found a project like Monero. It is darkly funny if he was then trying to leverage his leadership position to directly scam people though.
[0] https://www.coindesk.com/business/2021/09/22/riccardo-fluffy...
Is he a founder? My understanding was that he became a supporter of Monero years after it was created by someone else.