That is certainly what I have understood. And it is claimed by rapists and paedophiles to be very unfair for possible rapists or paedophiles to have their names and pictures published, lest people leap on the bandwagon and make spurious claims against them.
This can happen, of course. There was a time when Paul Gambaccini felt quite strongly about that. He was never charged with any offence, but was kept on bail for well over a year in what he described as a "flypaper" operation by the Metropolitan Police, who subsequently had to pay him for loss of earnings as a result of their action. Yes, I remember when gays were targetted in this way: Cliff Richard was another who had clearly done nothing whatever to deserve being hounded as he was.
In general, though, making a rapist known makes it likely he doesn't get away with offences that he was not originally charged with.