I think, once is enough.
I admit I bought a bit of LunC for like $10 after the fall, just in case the team will miraculously finds a solution. Maybe the burning mechanism would help recover even at least at 50 cents. But, it would very bad idea if you'd put another huge amount into it after it collapsed. There was an issue there that the founder is well aware of, but he let it happen. Now, he got arrested. Things are pretty clear now. He got exposed.
Do you think people would still trust this project even after the arrest of the founder?