I always wondered if these text messages are extremely cheap or free for these spammers to send? In my experience, sending texts costs around 0.5 to 1 cent so are they hoping after spending a few bucks in spend, they'd get a sucker?

I used to have an auto-expanding snippet that would insert the entire wikipedia entry for the Tiananmen Square massacre and then I'd never hear back from them. This was mostly when the Chinese bots were doing the pig butchering scam.