1. Personal blog, if you optimize it correctly, will be able to give you leads from search. For example, you can write several articles on the subject, "Find a programmer and not to lose", "a Good programmer is all gold." I.e., entering the meta tags in the text of the queries that can search for such a specialist. Yes, it is a purely commercial story but you do work for money, isn't it, and it's not because of love to art, and to find customers.
2. A person who writes, always "above the head", one says. Of course, provided that they are on approximately the same level and people do not write nonsense.
3. Not to pass copy-paste, write in your blog that is your personal article, unique content, and if someone wants to use the reference is obligatory. Git, etc. the profile of the community was not canceled.
Success, the right direction. Better to do it than not to. By the way I have found yourself a developer on one project on Bitrix is through his blog, in search results.