But what would investors think about buying a currency that can be frozen?

Actually many potential investors have decided to not invest in STEEM exactly because there was this threat from day 1.

Bottom line is. He acquired a company and the tokens that cam along with that company shouldn't be in circulation in the first place.

They chain stopped and started again 2 if not 3 times until they mine all this stake which felt as a governance stake.

Justin is way more clever that Ned and that dormant stake...wouldn't stay dormant for much longer.