I disagree, some people lie in wait, hoping for a really good problem to tackle because they just want the excuse to dig.

Do you think Linus needs to write any code anymore? What kind of problems do you think a guy like Linus chooses to work on, the easy ones or the hard ones?

Tools change, people stay the same. Some people have never felt the rush of solving a really hard problem that no one else was able to solve. Such people can't understand that the fun is in the work not just the outcome. They can't understand that some people love to work. And for a person who loves to work, new tools are a joy.