eek2121 - 12:36 pm on Nov 15, 2013 (gmt 0)
Disclaimer: I know this thread is old, but somebody bumped it.
Despite what the naysayers say, It's entirely possible to make a living off from a site that uses Adsense. You don't even have to focus on the SEO part. I put all my energy into content creation, and it's paying off quite well.
Should you be sensible? Yes! If you want to quit your full time job, use your Adsense earnings to build up a year of salary first. Also consider having more than one site, each with a different niche just to diversify. If things start going south, you have other sites that will (hopefully) still be providing you income. If all else fails you have a year to find a job and get back to work.
Just my 2 cents.