No, it was a legit question. It depends on the payload though right? For StarLink deployments at LEO, I'm sure it re-enters soon-ish. But what about for higher altitude launches of other types of satellites? How long does the second stage float around?
If you take it out of context of your post, yes, it looks like a well posed question. When read in context it looks rhetorical and that's how I took it, too. Perhaps you didn't intend that. But that is how it came out.