Remember also that we have a level of auto-moderation now: the auto-mod function will certainly not check for quoted sections in other posts. And when it comes to human moderation, they don't have endless hours to do the job.
e.g. In the General forum the other day, thread "Cheats List": the first post by marinakatomb did some explicit naming and shaming and got itself wiped. Whether that was a mod choice or the auto-mod I have no idea. However, the post in question had been quoted in its entirety by shavixmir two posts later, so the 'offending' material still exists.
This raises the question: if one is to "alert moderator", should you also do this on every post that quotes the offending material, even if you think the content of the following post is quite valid?
I've always thought the quote thing to be heavily overused on RHP, particularly on long posts when the new post is often no more than a word or two. Basic forum lazyness in most cases.
A cleaner system would be for quotes to be by link ( e.g. underlined "nth post, username" ) rather than fill the screen with endless repeats. If a post was moderated, that would become plain text "xth post, username, moderated". If you only want to quote a small section of a long post, then copy/paste and take the risk that your post may be moderated because of what you quoted.