> Now people are going back years scrubbing candid thoughts they had when they were teenagers while the naturally reticent have nothing to worry about.

Not only that, but do you know for certain which of the views you have today that are benign and unoffensive, will be considered taboo and hateful in 20 years? I don't know which ones, nobody does! But in 20 years someone is going to trawl through the archives and measure your views today with tomorrow's moral measuring stick.