@handmade steemit is great for content creation and public reach - hubzilla is a good replacement when you need identity for sharing content you do not want to be public and also for filesharing, calendar, websites, wiki, chat, etc. It allows granular security control over your content without needing to trust third parties if you run your own server or with a limited and understood third party trust if you use someone else's server. The ability to share what content you want with who you want, without a company in the middle like Google, or Facebook who introduces another party who is being secretly forced to give up your information is a big deal.