I think there is a value in the product you are underselling. Users of Twitter may see that there controversial posts can not be censored on HIVE and this may attract them to the platform. This would work also for Reddit, especially since there has been outrage lately over the small number of mods controlling most of the website and censoring a lot of people. Finding some controversial posters that want to use your service would help in showing this.
It may help if you add a promotional message to every posts, emphasizing the censorship resistance and real monetary exchanges on HIVE.
Good luck!