I'm new to this whole #hashtag thing, because I came straight from IRC, skipping Twitter, Facebook, Instagram and others. So they still look like channel names to me, which originally inspired them.
That means that it feels awkward for me to use hashtags unless I can use them in a sentence. I've never liked when people add them at the end of a post, or worse, add a bunch of them that doesn't seem to increase the findability of the post.