If a user wishes to leave the site, fine, we remove their account. But their contributions should still be labelled with their old account name, since this is the only way to maintain proper academic discussions--- you can't have academic writing turn anonymous retroactively when a user gets piqued. Also, it is not clear that the accrued reputation needs to be zeroed out, it can still apply to the defunct user. If someone wishes to have a new userID and start from scratch, the old one can be blocked, and the new one granted permissions. If the user wishes to leave, one can just block the ID without anonymizing the posts. I don't think that anonymizing Vladimir Kalitvianski's posts is a good idea, as they are now without an owner. This seems like it will be a big problem in the future, if academics come and go, and we keep the same system as now, a large chunk of articles and posts will end up being by anonymous.