Maybe it does, but if they are able to see that the other account remains untouched I don't see why there would be an issue.

It costs to set up a new account on the blockchain, but provided the remaining balance of the old account is around 1 Steem as a minimum then technically there is no loss.

There are many heavily invested users here with multiple accounts that are all active, so couldn't imagine it being set in stone.

You can also buy anonymous accounts if you're concerned about the cell phone number voiding payouts.