There’s been a leading theory that Twilio has turned a big blind eye to misuse of the their platform for sending spam. They have all these clauses, rules etc sure; they make a good show of it, but they are really slow for example to close loopholes, if at all. They’ve done a good job of making the whole thing look like they take it seriously while being clever enough to leave loopholes and obvious workarounds to anyone who knows where to look

Or so the theory goes