Makes sense why this would raise a red flag, but it does not explain why Stripe supposedly had extremely shitty customer service where he can't get talk to a person and get this resolved in less than a week or two (let alone 120 days that is actually arbitrarily indefinite).
I'd bet $20 he's been repeatedly told this, and his definition of "can't talk to a human" is "can't talk to a human that agrees with whatever demands he's making".
From the reddit post, the demand appears to be to not hold the money for 120 days, and there's no reason for Stripe to agree to that. He also appears upset that Stripe reviewed his company docs after he violated his agreement with Stripe by selling a car, rather than the cellphones he told Stripe he sold.