A new SIM can matter for SMS-based recovery and for separating consumer phone trust in some flows.
It does not, by itself, erase months of session history, device integrity signals, or ad-account linkage through Business assets.
If the same handset immediately logs into a new profile after a disable, you still present a device continuity line even when the SIM tray changed.
Think in layers: subscriber identity, hardware identity, network identity, and account graph identity. Changing one layer while the others scream “same operator” is why people feel gaslit when the second ban arrives “for no reason.”
There is usually a reason — it is just not the reason they were hoping for.