Ah. Thank you for this post. Although it seems long, this post actually explains things in a short and simple way. I now know that full nodes are on different server and price feed is just an automatic script. Previously, I thought that price feeds are on different servers while nodes are different software. Lol. :)

P.S. You were one of the witnesses who I've voted first, ever since I've known this "witness" term back when I joined Steemit. :) You've done a great job supporting minnows. Vote TeamSteem!