Yeah true, it's all down to luck.
A lot of accounts are safe until you start inviting people, that's when the trouble starts
It's a global ban, not a signup ban. So you'll get banned eventually. The only way is to use a proxy/vpn/vps forever or kiss some staff asses.
If you're so sure that it's a signup ban why do you keep asking? The answer is obvious.
Bought a buffered SCC with 3tb for 5$, changed the email and it works great, although the account is pretty old, 2yrs old and isn't used much