Your point #2 is not at all what this data implies. It shows that when presented with two LinkedIn profiles, users chose one developer over another. In that effort, Mixtent found a correlation showing that Python and Java developers were strongly favored in these comparisons.
Hiring decisions aren't typically made in the same way. If you have a Rails app, you need a Ruby developer. Granted, anyone can learn Rails, but I've worked with really talented people who were in the process of learning the Rails framework, and it's not something I'd like to pay for again.
Hiring decisions aren't typically made in the same way. If you have a Rails app, you need a Ruby developer. Granted, anyone can learn Rails, but I've worked with really talented people who were in the process of learning the Rails framework, and it's not something I'd like to pay for again.