I don't know a lot about dBuzz, generally I don't like that sort of thing because of the reward pool, but they limit the posts to 1 HBD which I think is awesome and makes it totally viable.

The problem is, we are a small platform in terms of users, and to compete with Twitter you need a massive user base. I will always use Twitter, I hate it, but it is a very effective tool and I would be silly to not take advantage of that.