I asked about it because in this case mining doesn't require anything from you, except the internet connection. And the amount that can be mined depends on your PC capacities and the number of mining bots you run. In my case I earn about 50$ per week which is a good addition to my regular salary. That's why I wonder why it's not so popular..
Sounds really amazing to me because for now I have a PC with above average specs because I usually spend my free time playing games other than being on this forum. That's why I bought a PC that has above average specs and I think it's suitable for mining, but I don't know where to start. Because I don't have any experience in mining.