Do you think it's okay if I tell someone to stop complaining about something recently being stolen from them?
Why do you want to tell them not to whine about the theft of their stuff?
If they want to keep something, then they should take care of it! Don't blame other things or people for losing your stuff.
People who have had things stolen from them have been through a hard time. Forcing them not to talk about their experience is unsympathetic. Try to find some compassion for those around you.
I have no sympathy for losers. Stop being a carebear.
Victims of theft are usually not at fault in the crime committed against them. They feel victimized and need to vent. Wouldn't you want a sympathetic ear if you were to become a victim?