I completely understand! I felt the same way for a long time, and it was something I had to remind myself of. I am a writer because I write. If someone asked me where they can see my writing, I wouldtell them LinkedIn, or my blog, etc, same as you. I think it’s also a confidence issue. People say “Oh yeah, what do you write??” And you have an answer to that. Don’t feel that you have to prove anything to anyone! You’re a writer.