I can understand that deleting posts is not nice for the people who posted an for the integrity of the information and context, but the link I am referring to is of a different nature, that is the /user?id=me could be deleted without breaking any thread. To add that feature seems a reasonable and sensible compromise between privacity and integrity of information.
Hacker News is an American site run by an American company, probably hosted on an American server.
It might be nice, as a courtesy, for them to add this for their considerable European userbase, but the web is global, and not everyone has to care about what Europeans consider to be their rights.