I definitely post comments to show people who's work I've enjoyed that there is someone out there reading it. As you say, it's about extending a sense of community. I like to think that over time, the relationships you build with those people will help expose both their and your well crafted posts to a broader audience, so why not comment right?
Thanks for the post ;)
@holothewise, I completely agree. When we start reaching out to others, our own network begins to grow (in ways we often did not expect). Thanks for the comment about comments.
I appreciate you stopping by!