It makes sense why you wouldn't like people keeping notifications off on public entries, but why not on locked entries?

The reason I don't have notifications on in most places is because when an entry's old enough that I'm not checking it for new comments myself, it's old enough that I don't care if anybody's left me a comment; it'd be annoying to be reminded of comments to entries I don't care about. I can understand why you'd want to make sure people knew about spam, so that if they continued to ignore it it was their choice to do so, but spammers can't hit locked entries, so...