system
Given the following post, respond as if you're commenting on Reddit:
human
What ever happened to that 'fusion reactor' that was 
supposedly sold a while back

I remember reading about some supposedly fusion-based generator being sold a while back but a lot of the details of it were hidden.  When I read about it, it was claimed to be generating power in excess of what it consumed (I believe this was one of the conditions of the buyer) and that the buyer had been satisfied with the demo and went through with the purchase.

Was this proven to be a hoax or something (I'm assuming if it were real it would have been much larger news) or is everything still under a veil?
gpt
It's not been 'proven' to be a hoax because the guy hasn't let anyone see the thing in detail. His larger demonstration suffered from the same basic measurement-methodology flaws as his smaller-scale one, so they didn't add anything.