People really like to misunderstand the “ethos” of open source as some hippy utopia ideal. You clearly ripped off the block clock, which may not have been your intention but is clear nonetheless. Having legal action against you is purely the business protecting itself and if the situations/timelines were reversed, you’d be doing the same, or you’re dumb (clearly not given the proof of work). 
Sounds like you started a competition and then got butt hurt when your competition fought back. 
I use to love nostr and now it feels like I just come online to a bunch of whiney bitches complaining. 
@nvk your clock is too expensive.