Are you spending hours putting out content only for what you think is crickets?
How great would it be to know you are able to organically get the right people to notice your blog?
GOOGLE is NOT the only place you need to optimise for.
Facebook, Pinterest, Twitter, Instagram, LinkedIn - ALL have search functions. You can search for keywords on all of these platforms.
So why would you not optimise your profiles the same as you do your blog content?