Question: Who all has schools by number?

On the cover of Looney Tunes for April 2005 is a mobile little red schoolhouse labelled "P.S. 123." Now I am wondering what places have numbered, rather than named (Lincoln, Franklin, etc.) schools. Looking around with Google, I've not found anything really definitive. I know New York City has numbered schools, but does anywhere else?

Another Question: LJ comments and email notification

I have the option set on LJ to send me copies of followups to my posts and comments. I do this mainly so I am aware of new comments to older posts and also so if someone not on my friends list comments it won't sit just too long waiting for me to make it visible if it deserves to be. Recently I've noticed a comment to a post of mine didn't get emailed to me. A little while ago I also found that one person's followups to my comments didn't get emailed. This bothers me. I set things to be informed and either LJ's code has a bug (and LJ wasn't being otherwise flaky that I could tell either time) or else it's possible for someone to override my choices about getting informed of replies, which seems to be a Very Bad Idea. If I don't get any email commentary about a followup, it's possible I'll miss it entirely if it's to something that isn't either very recent or so interesting I keep going back to it.

Has anyone noticed this going? Is this something that some consider a feature, "stealth" commenting?