Is there any proof, or even indication, that this wasn't an inside job?

Usually I would expect proof for a positive - like that it was an inside job, or there being an indication of it. I'm not saying whether it was or not, just that it seems unusual for you to ask about proof of it NOT being an inside job.

	▲	kibwen 10 hours ago \| parent \| next [-]
		When it comes to crypticurrencies, no, the "hack" that turns out to be an inside-job rugpull is so common that the correct burden of proof is on the people who think this wasn't an inside job.
	▲	amarant 9 hours ago \| parent \| prev [-]
		In a court of justice you'd be right, of course. But for online armchair speculation, you have to admit it seems a likely explanation.