Everybody who's ever played The Sims 2 can tell (if he or she came across Stuff You Should Not Do In Your Neighborhood) that if someone deletes a single Sim from a neighborhood (or deletes a grave) - and by any chance posts that here - you should press Dislike three times, and act like someone on YouTube posted a comment with a grammar mistake. *burn him!!*

I do know Sims3 is a completely different beast than Sims2, but I'm just not sure whether it's allowed to delete graves through buy mode. Will it shred Sim's character file (and with that - ensure that you have the world expiration date), or will it do nothing? (PS Talking about vanilla game here.)

Also, deleting Sims - I mean if you go to Edit Town mode, move a family to the clipboard, and then delete them. Will something happen?

I've deleted families from the clipboard out of necessity before (due to an EA glitch), and it didn't seem to have any effect on my gameplay. Of course, I saved the family to my bin first, so I don't know if that has anything to do with it....

You might find this useful:
http://www.modthesims.info/showthread.php?t=491813

Thanks Mootilda.