There are valid reasons not to post code or blog. True for some. Posted code or a blog may demonstrate knowledge and capability in the subject area for the pot

There are valid reasons not to post code or blog. True for some. Posted code or a blog may demonstrate knowledge and capability in the subject area for the potential hire. Also true for some. Demonstrating professional skills shouldn't be discounted just because someone else doesn't. It absolutely should make a difference if it's relevant even other people have reasons for not doing the same. Hiring is selecting the right person and not selecting the wrong person. It is not about sorting all people 100% correctly into hire/no-hire groups. A blog with code can tell a lot about a person. Do they understand the material? Can they write coherently about it? Can they target an appropriate level of audience with that? Maybe these can't be answered just by reading the blog, but it gives a lot to discuss in the interview process. Some people want to have the exact same interview process between all people. People are different, though. Locking the interview down to a single process doesn't allow for the variety of skills out there to shine individually. If that avenue is through a portfolio or blog, it's fair game.