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I see the opposite, as long as you can create an infinite amount of new accounts and start over, it's easy to spam. When you are in a situation where even if you have 100 accounts you are identified as a single person, the cost of spamming becomes huge.

Yeah, you just won't get a 'Good Person Token' issued until you can (somehow) confirm you are operating with a single account - or have put forward this one account to be your GPT issuer.

This is for SMT though, no plans for that 'here' I read.

https://steemit.com/steemit/@nealmcspadden/account-based-voting-is-a-terrible-idea-for-steem#@ned/re-nealmcspadden-account-based-voting-is-a-terrible-idea-for-steem-20180515t021921631z

I would say that here, it's actually going to be tougher for the smaller accounts - especially those not producing content for the dapps and utopian.

You should be set though, as it should just be a case of holding the SP and letting the SMTs do the work.

Cheers.