You literally answered your own question. “... though MMS for group texting is ridiculously unreliable so I try to funnel people to Signal.” Group texting bet

You literally answered your own question. “... though MMS for group texting is ridiculously unreliable so I try to funnel people to Signal.” Group texting between iPhones just works. Add an Android user to the group and all of the sudden it doesn’t work. Ergo, don’t add them.