I invested in this coin two years ago, made 1000% profit but I cashed out because I don't think it will have any use in the future. Maybe I am wrong but I don't see this coin going to worldwide adaption. Because every coin can simply implement this feature once there is worldwide adaption.
But Reddcoin makes it easier to actually "use" the coin (tipping other users) with Redd-ID. It's almost as simple as just clicking a button.
That's something other coins (afaik) don't have yet. You would need to other person's wallet address and then manually send them the tip/coins.
I still have high hopes for this coin. Let's just see what the future brings, or when Redd-ID launches. I am positive it will grow!