A person who enjoys stabbing things might be referred to as a "stabbing enthusiast" or "knife enthusiast," particularly if their interest is in the art of knife handling or self-defense. However, if this behavior is associated with harmful intent or violence, it could indicate a psychological issue that may require professional intervention. It's important to differentiate between hobbies that involve safe practices and harmful behaviors.
A person who likes to burn things is called a pyromaniac
A snuggler
Human.
A sybarite.
A person who likes to hurt others is called a sadist.A masochist is a person who enjoys hurting themselves
A person who likes to figure things out. A person who is good at logic. A person who likes these types of computer Games
Cool man
Paedophilia. It is called paedophilia.
a person who likes to do things that fakely help ppl.
Spendthrift.
The person can be called either businessaholic or businessminded person in my opinion.
A person who likes to sleep a lot is often referred to as a "slugabed" or simply a "sleep lover."