It's not always easy though to spot steemians that have the potential to truly care about this platform and will stick to it in the longer run.
Over time, it is relatively easy if you are paying attention. perhaps one day, there will be an automated feature to present it.
I also must say that at times as a dolphin it's very tempting to say screw it and just use steemit in an far more selfish way which might even earn me more and is far less time consuming.
If I had done that, I would be a lot more useful now...