I think that's very much a hindsight kind of thing. I mean, yes, Nikola was a scam. But in "the beginning" the only people willing to say that it was a scam were ones who sounded exactly like the much louder, better funded, and media-accessible people screaming that
Tesla was a scam. This very site was filled with $TSLAQ nonsense. And it was all wrong, much of it deliberately so.
The investment world is drowning in deliberate misinformation. There's no path for reasoned criticism to break through. Pick any stock and there's someone willing to tell you it's a scam. Or a gem.
Edit: and this subthread is a perfect, shining example. Just look at all the people jumping in to perpetuate and argument that somehow Tesla is, I guess, comparably fraudulent to Nikola, a company that got caught faking a vehicle that didn't exist. No one trusts you people, because you sound the same for everything.