"I'm not saying don't use a file like this, just use it with care and don't use an autodelete but go through all the results by hand."

Agreed and the docs emphasize that - though the chances of false positives are extremely small. I usually restrict the file types to scan and always do it in manual mode. You van even replace the duplicates with shortcuts or NTFS hard links if desired. Obviously, don't use something with 'delete' in the name without reading & understanding the instructions and wearing safety glasses as Norm would say.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken