I have a goofy/edgy/"I thought it was cool when I signed up for it" address that is NOTHING like anyone's name, but people will absolutely sign up for cell phon

I have a goofy/edgy/"I thought it was cool when I signed up for it" address that is NOTHING like anyone's name, but people will absolutely sign up for cell phone plans and stuff with it. What is the plan here people? I could make someone's life utterly miserable if I was so inclined, unless it's a fraudster doing fraud things (I doubt it, the address and name they use has been pretty consistent) I have no idea why you'd put your legitimate information into someone else's hands like that.