I really believes that sharing information is important in today's world. I use a lot of open source libraries/modules in my daily job, I've read tons of blog articles, got help plenty of times on Stackoverflow...
For a long time, I was not willing to share my work with unknown people, not because I was selfish, maybe by shyness or lack of self-confidence in my work or skills. I was also probably afraid of being judged, of criticism.
Today I enjoy more and more sharing my knowledge, discussing, debating with people about the topics I'm interested in. So I would be happy if some of my contributions here can help people or give them some ideas!