I have some themes I post about such as running and my #FollowFriday posts. On other days something may occur to me from what I have read or seen somewhere. It took a while to build my audience, but it was largely from commenting. I used to be one of the top commenters, and may still be in the top 50.
Adding value is important. I see people do Actifit posts with one or two lines. I try to tell more of a story on my running posts using @Exhaust.
Are you going to do more with Keybase? Did you change accounts there? Ought to at least have a Twitter proof. Getting integration with Hive would be great.