Ghosts really freak me out!  Do you believe in ghosts?
Why not? Ghosts are known as an apparition, phantom, shade, specter, spirit. They are thought to be the soul of a dead person or animal.
Have people throughout history always wonder if ghosts were real?
Ghost
In folklore, a ghost (sometimes known as an apparition, haunt, phantom, poltergeist, shade, specter or spectre, spirit, spook, and wraith) is the soul or spirit of a dead person or animal that can appear to the living. In ghostlore, descriptions of ghosts vary widely from an invisible presence to translucent or barely visible wispy shapes, to realistic, lifelike forms. The deliberate attempt to contact the spirit of a deceased person is known as necromancy, or in spiritism as a "séance
Chasers use their equipment from the Apparition Kit (like the Specter Detector, the Poltergeist Powder, etc.) when it comes to determining whether the ghost is real or not. The major differences were that the ghosts they eventually find are real and would help in defeating the fake ghosts. Some of those people behind the mask of some fake ghosts are not criminals. Goober had the power to become invisible (but could not control it) and his closest human companion is reckless instead of cowardly. Also unlike Scooby-Doo