It looks cool, but how do I know this is not a front to capture people’s voice fingerprints for other sinister usage?

hmmm... What type of sinister usage?

Well not giving you ideas but voice signatures or prints are used in the wild, in wars or even civil cases, even in the US https://www.technologyreview.com/2019/01/31/137633/us-prison...

	▲	wbemaker 2 hours ago \| parent [-]
		interesting. giving me a lot to think about