Yes, I do think there is a big tech creator group right now. I mean, it makes sense because most people on Steemit seem to be a little more tech savvy than the general population on the internet.

I do think audience is important. If your audience loves to hear how great DTube is, than make content for them. Growing a new audience is defiantly harder than catering to your own. At the current rate of the value of Steem, you don't need a lot of an audience to get a big income, so there is somewhat of no incentive to grow big audiences.