+1, that's the way i look at it too. If it truly is an original design, and it's reasonably priced, and there's no hype/emperor's new clothes guff going on about it, then you probably shouldn't clone it.
But if it's a very slightly tweaked tubescreamer (and if it's boutique, odds are it is... maybe even if it's a phaser pedal :lol: ), yeah, I don't care. You cloned, don't blame someone else for cloning you.