Thanks Tarlia. I figured out how to do this.

At first I thought of moving the character instead of recreating them. But then I realized once I removed all their memories and relations they are just "like new" anyway. Indeed it is much easier to just clone them~~

Thanks Pescado and Tarlia.

My neighborhood had generations of sims, but most of them are dead. I'll just let the dead be gone. I'm moving the youngest generation only, there are like 30 sims. I hope that's managable. Pescado, I noticed that your Lot Debugger can eliminate most of the irrelevent "gossip" memories and "meeting someone" things, and that greatly reduces my work. Thanks!

I'm not sure how to rebuild the relationships using SimPE, but I guess if I don't care about preserving the family lineage then it's probably just some marriage relationships. Thanks for the idea Tarlia~~

Thanks for the reminder, but I heard that if I clear their memory and relationship properly, then I can move them with no bad consequences? Is that true?
I guess it will be a lot of work, but I've been playing this neighborhood for so long. If there's a way to retain some characters I'd feel much better...

Thanks for the information. Since it's probably gonna explode sooner or later, I guess I'll just pack up the characters and houses & move~~

oops, does that mean I have to abandon the neighborhood anyway? I've been playing it for years (in fact, since I got the Sims2), and I guess there are too many junks in it. I once moved an extremely polupar sim who knows everyone in the neighborhood to another hood without clearing her. I read from other sources that's what causes the crash, and SimPE does show multiple profiles of the same person. I thought of delecting all those who have duplicates. If you happen to know this, could this possibly save my neighborhood? Thanks Pescado~~

Hi Pescado. Thanks for the post, I've been wanting to delete the PC-created townies in my hood for a long time, and finally learnt how reading this thread.

But I ran into a little trouble here: After I deleted a whole lot of townies in my game following your method, I couldn't read into my hood anymore. The game just continue reading without ever taking me to the hood, but other hoods are okay.

I wonder why it doesn't work. When I "prepare for delete" someone in the game using the Lot Debugger though, there are strings of information telling "fixed or removed X items". Sometimes (I think when the string is too long) the game returns an error message "too many iterations..." and I had to "reset" it. The sim's action is terminated after resetting, but when checking the names generated by the Debugger, the sim I tried to delete does disappear from the list. I wonder if this is the problem. And if so, is there a way to fix it?

I hope you can see this. Thanks a lot~~