Dataomania 

Term used to describe an individual who is obsessive about the collection, preservation, and hoarding of computer data. A person with this is called a "dataomaniac". See also: Data Hoarder

Person A: that dude has like full 15 hard drives
Person B: He's a dataomaniac dude

Dataomania by BuissnessEmail69 April 2, 2023

dacnomaniac 

A person that's obsessed with murder/killing.

Dacnomania - obsession for murder/killing

I think John is a dacnomaniac, because he is obsessed with killing

dacnomaniac by Sociop January 5, 2017

Dacnomaniac 

The unhealty obsession, desire, or compulsion of killing

Dude! that guy has a life sentence for 30 counts of 1st degree murder on the species - Eg, and assault on their leader - Lord Eg! He must be a Dacnomaniac

Dacnomaniac by Lord Eg April 12, 2021