Is it true?

I don't really know, but I think it depends on the sims. Maybe they friendly toward the brave sims

if your sim is a coward and they see a ghost they faint, it is really funni, but yeah you can talk to the ghosts and stuff, it is really cool

yeah, if u shft-ctrl-c and type testingcheatsenabled true, ull get cheats. type in motherlode for 50000 simolels. u can go to career once u click shift and click mailbox and choose overseer of the dead. now u can befreind the dead

yes the ghosts are friendly i make my sims go to the grave yard at night to go fishing for deathfish and look for life fruit seeds and the ghost just talk to them thats it pretty much

Ghosts are fine to interact with. I mean, it's not like they can kill your sim :P.....