Nice vlog mate.
The coin is two-sided. I'd say that we have both "fake nice" and "nice" on Steemit. Most people in general are probably more good than evil, so being nice is one of our "main features" so to speak.
However, Steemit have given its users the opportunity to earn money while doing pretty much the same things they've done on Facecrap and twatter for several years. And most of us are well-aware of the fact that it'll look better if you're acting nice. It's more likely that others will like you due to your kind words, sweet talks and/or generous/selfless actions.
- And that's pretty much it.
Steemit gives you the opportunity to earn money. It's easier to earn money if you come out like "the nice guy", and that's one of the reasons people are being fake in general.
That being said, I also think people actually are nice due to the fact that people can be themselves in a more comfortable way on Steemit compared to other Social media platforms.
There might be some elements of soft mental programming. It's not impossible for me to imagine someone changing his/her ways just because he or she can finally see the positive outcome of being nice.