Comment by fencepost

I have three different generations of email addresses associated with United Airlines that all receive spam. Never any disclosed breaches AFAIK, but clearly email addresses got out at several points. At some point I stopped bothering to check.

As for Soundcloud, the password I had saved for it and a tiny bit of profile information tells me a lot - a manually created password saved into a password manager, probably in 2010 or 2011 and unused after grabbing a single track.

Addresses for services I actually care about also get what's basically peppering, and have all had updates much more recently than the days of Blackberry devices.