I saw some small business owner complain about this behavior on twitter some time ago and he mentioned he only saw non-Americans do this and it made him really mad or something and he didn't provide the service and banned them or something. Funnily enough I do think this happens so sometimes I cancel instantly and sometimes deliberately wait until there are a few days left on the subscription exactly out of paranoia behavior that you'll get a worse service or something, that they must have some database field early cancel and mess with you or something.

Why would they salt their own field it's hard to understand