>What I want to know is, what's the purpose of those random texts that just say something like, "How's it been?" from a number that I've never communicated with? What's the angle there? Anyone know?

I inadvertently replied to one of those spam messages because the number coincidentally matched the location a relative had recently moved to (I figured it was them trying to joke around while informing me of their new number, it was something along the lines of "Can you guess who I am?"). They replied with a picture of a girl and some question trying to start a conversation. So, I figure they're just fishing for easily tricked or lonely people to manipulate into sending them money.

FWIW I didn't notice much of an uptick in scam texts/calls after that.