I'm interpreting this as incredibly pedantic.
Just because Beeper is delegating the ToS violation to a bunch of random people doesn't mean they aren't complicit. It appears they are acting in even worse faith than Apple here by suggesting their new mechanism is safe and has no side effects when it actually does.
If the cost for me to enjoy a relatively spam-free and stable iMessage experience is to simply not do dumb things, then I will voluntarily not do dumb things (at least not with an account/machine I care about).
Don't sacrifice your devices for another company's attempt at 15 minutes of fame.