I have never been scammed in most of the other way listed. Maybe the way I got scammed was through a shitcoin that promised to have higher gains. I held bags of the shitcoin and it just kept dumping and dumping until I just exited at one point  

The other way I was scammed was speeding my time doing tasks for a project, and they just didn't pay. I value my time, once it's wasted, it's similar to losing money