Spiders are some of the more useful bugs on the planet. Don't kill them. Kill dirty flies, kill daddy-long-legs, kill mosquitoes... just don't kill spiders. They actually do a lot to keep your home clean.
Probably more than you do.
You ask people not to kill spiders, but then instruct them to kill a type of spider. Not only that, arguably the most beneficial spider and thus the one you don't want to kill.
Ah, cultural difference - I mean Daddy Long Legs in reference to the UK usage - the crane fly:
Not the Pholcidae, which is a spider (or an arachnid at least) :
Everyone should just stop f*cking around and use the proper terms that we use in England.