This highlights a very specific cross-section of the programming community that isn’t necessarily representative. Users of minority programming languages and tools such as editors are going to be significantly underrepresented due to network effects.

The results very well follow the “developer evangelist”/cargo-culting and “underpaid enterprise code monkey” groups, however.

How come the total percentage > 100?

It's a multiple choice question. I use VS Code and IntelliJ for example.