Proponents keep pointing out that somebody can still find the information if they dig for it - or hire somebody to dig for it - and rather than removing information this just makes it harder for *regular people to find.
So people who can't afford it don't have access to that information and the internet becomes a less useful tool for those that can't afford to pay for LexisNexis (or whatever service it happens to be).
Not only a benefit for the pedos that get to have their records essentially expunged but a *huge blow to the economic viability of small businesses.
The wealthy get to use the internet - the poor not so much.
This is one of the most short sighted, and potentially destructive, things I've seen regarding internet regulation.