Worst documentation? I have seen worse than that.

No documentation is more efficient than incorrect documentation.

If the documentation is wrong, you try to follow it precisely and it ends up not working, then you go "fuck this" and try to figure it out by reading the code. Then you curse the developer.

If the documentation is just missing, you go straight to step 2.

No documentation is more efficient than incorrect documentation.

@vurpo worse, if the incorrect documentation is an outdated tutorial for an API that isn't open source. no step 2 there, just trial and error