"There are people who have done great evil, who perhaps want to be forgotten if they were dead. But it would not be morally right to forget their deeds and the lessons we can draw from them. Because of that, the right to be forgotten upon death is a conditional one."
The above is the moral reasoning expressed in the comment you are responding to, and of course whether or not one agrees with this line of reasoning can vary from person to person and belief to belief.
