I’d been a Fidonet BBS sysop for years when I read Torvald’s post on comp.os.minux and I was interested, as MS-DOS was too limited. So I downloaded my first “not distro” on a midnight call (300 baud!) to Finland. It wasn’t even a distro back then, just a bare kernel and a few programs. Then SLS came out in late '92 and I was off and running.
I’ve hopped all the major distros just out of curiosity and torture/fun, many times, too many to count. Each has it’s own quirks and usability, but they all have the kernel. So it doesn’t matter which you run as long as you like it, you’re having fun exploring, and it does what you want it to do.
Before CD distros? Ma Bell loved us lots … or at least our wallets.