To answer the question...I'm fairly new but from things I've read, yes...you can make $ that way. I don't know how "decent" though. To expand a little on BlossomSB's comment.... The $$ is not overnight. I'm here because I love to write, research, and learn. Some play bingo....I'd rather hub. From all I've read, good quality content, clear presentation, and persistence is the only way you'll make "decent" money in time. That's my goal.
At first, I mostly wrote and read but realized that if you don't know what the tools are for and how to assemble a "good hub", you're great idea will just sit and draw random followers by hapchance. Needless to say, I've been making multiple adjustments to the hubs I first wrote and in a short time have noticed a significant up-tick on those hubs.