> joining signal
> None of can give me a straight answer as to why.
No secret squirrel shit here, their dealer told them to use signal.
I've been watching the same thing happen over the past year or so as circles of friends from various periods in my life have joined. Often I see a burst of 3-5 people a month who are associated with each other in the same way they're associated with me (went to the same school, same school and major, hobby groups, bar trivia groups, etc.). It's normal, if you'd been on Facebook at the time it started you'd have seen something similar. The difference is that with Signal you get a prompt if you both have each other in your phone contacts, so you're notified when members of one of your social circles joins rather than having to discover them serendipitously (like with early FB, looking at friends of friends lists).