The US still generally has freedom of speech and association. We don’t ban political parties from organizing, nor do we tell voters who they cannot vote for.
It automatically saves and reopens whatever you previously pasted in there. Quite a shock the first few times it happens. It's not a safe temporary holding area anymore.
You cannot install any apps on an iOS device without registering and logging in with an AppleID, which requires both an email address and a telephone number.