However you can also find some impressive innovations from projects that are trying to add real value with solid tech.
Salient point. If cryptocurrencies are gonna be successfull we should not only trade or buy & hodl, but we should participate in their underlying tech.
Just like posting, commenting, and upvoting on Steemit. Other examples would be to rent out your CPU & GPU or render 3D on Golem, use MaidSafe, Sia, or Storj for backup, If you're a game developer sell upgrades, IAPs & DLCs via GameCredits, be a teacher or student on Tutor-Web, and so on and so forth.