I disagree. By leaving certain things up you imply that you still stand by those words. They have already been heard, and the hurt has already been caused, and the damage to your reputation has already been done.
Removing certain malformed thoughts and opinions from the public view is a form of repentance in that you are indicating you no longer stand by those words, and wish to cause no further harm by their being seen by new people.
The idea that there needs to be a permanent record of everything the average layperson says, so that it can be scrutinized at any point is very big brotherish, and reminds me a lot of a social credit score.
Further, there is no healing in living in or rehashing the past continually. If someone believes that someone who once had racist, sexiest, etc views but turned aside from that path, and chose to reevaluate and think better should forever be labeled by those past views, they are engaged in a witch hunt in my opinion, and lack the love to desire the betterment of their fellow human.