There are still misconceptions about memory usage in 2012?
Safari will use as much available RAM you have free until it's told to give it up. You still have almost 2GB of RAM free in that screenshot, why should Safari reduce its memory footprint without any actual benefit to your system? Just because it's using lots of RAM doesn't mean its "bloated". Chrome and other browsers have exactly the same behaviour.
Safari/WebKit/WebKit2 had memory management problems in Mac OS X 10.2.x and higher, including Lion and Mountain Lion. So it is unlikely, that some Safari v5.x.x extension is the problem.A sticky topic really needs to be made about this. I swear there's a new thread complaining about Safari memory usage every week and every time it's been AdBlock causing the problem.
Safari 6 is memory eater. I open 7 tabs (facebook and twitter, youtube, and others non flash web). Safari consumes 1GBram and 70% CPU resources.
And then, i use firefox, open the same tab and content. Only eat 300mb max. with 10% CPU resources.
Safari/WebKit/WebKit2 had memory management problems in Mac OS X 10.2.x and higher, including Lion and Mountain Lion. So it is unlikely, that some Safari v5.x.x extension is the problem.
Well, from personal experience (and from what I've heard from several others), Safari 5/6 hasn't had memory issues unless AdBlock has been installed. I've been running these versions of the browser with and without AdBlock and only experienced the horrific memory leaks with the extension installed, so I've given up on AdBlock until I hear that it's fixed.
I am using an extension called Ghostery instead of Adblocker and Safari 6 is working perfectly.