It never ceases to amaze depress me the level of effort people put into extracting as much reward as possible from Steemit without doing anything to deserve it.
I hadn't thought of creating multiple accounts to get free steem which can be transferred to a holding account. No wonder people get aggressive about not having their accounts verified quick enough. They're all desperate to get free money for doing feck all! I vote for a system like Google, you only get to use your contact number three times to verify your account. Mind you, that wouldn't worry people, they'd use multiple phones wouldn't they?
I suspect the only answer is people like @sherlockholmes uncovering these individuals for us to downvote them. I clearly need to do more to support your work. We need more people like you unfortunately.
The current signup requires a unique phone number for each account. As we can see, that doesn't seem to stop anyone.
As my grandfather used to say: "If it's not nailed down they'll take it, mind you, even then they'd take it and the nails as well!"