I work in the field of information security. As a hobby, I enjoy OSINT, aka open source intelligence. It's fun to sleuth around on the interwebs to see what you can learn about folks, like connecting the online county sheriff's list of arrests for the year and cross referencing that to your neighbors. Another example is that when my wife and I looked at buying a house earlier this year, I built complete social and professional profiles of all the sellers.
I wanted to know about the person so I would have a better idea of how they maintained the home. I also wanted to know any contributing factors that would make them more eager to sell.
I know what I can do - purely as a hobby. I don't like the thought of GIVING more easy access to what I do with my time and money to people who might want to do harm to me and my family. Harm takes many forms beyond physical, including identity theft and character assassination.