Tweetbot by Tapbots is it a beauty. A text review can hardly do this app justice because it is impossible to put into words how beautifully Tweetbot is made. Sure, I can describe how, at your touch, a tweet slides up revealing a navigation bar while simultaneous emitting the perfect sound. I can explain that swiping a tweet to right reveals the conversation and swiping to left displays related tweets. I can tell you about smart gestures, multiple timelines, and customizable navigation. I can even spew out a concrete list of every feature that Tweetbot includes. What I can’t provide you, however, is the experience.
On Minds, you can subscribe to people whose posts you want to see. I’m on there as StephDwilson. If you try it out, give me a follow. You can register for Minds through my affiliate link if you want, which is here or go without an affiliate link here. Once you sign up, you can create your own affiliate link for referrals. It’s an interesting concept.
Unfortunately, while I prefer apps like EyeEm (and I'm curious to check out Steller), the real reason that Instagram works for marketing is that it's also used by people who aren't photographers. So while you might be building a decent following on flickr or 500px, it's other photographers, who probably won't be looking to hire you to shoot their campaign/wedding. If on the other hand you're looking to make a name for yourself doing workshops/training for other photographers then maybe they're a perfect place to market yourself.
These decentralized networks run on open-source software, which means anyone can contribute to the software to make it better, or download the code and modify it for their own instance. The software being open source doesn’t guarantee that the code itself is any more or less secure than the proprietary software that runs private social networks, but one of the main benefits of an open source platform is that anyone who has the technical knowledge can look “under the hood” and see exactly how Mastodon or Diaspora works.
For my money, at least, I'd much rather you focus on solving the other ten zillion things than go up against Slack. You'll have a hard time displacing Slack for us, and I'm confident nearly everyone we work with would say the same. Even if we liked CU's chat, we'd still have Slack open for the other 15 teams I chat with, so we'd end up going right back to it, methinks…