enabled, but I've got plug-ins on demand.

NoScript to have it on demand.

No Script enaled except for the most and trusted websites ;)

Anyone who isn't disabling third party cookies, running noscript, and some sort of adblocker* isbasically asking for trouble.

*Yes, I recommend adblocks. Not only do they improve the browsing experience, you can set individual sites as whitelisted anyway. And yes, there have been stories of malware spread through advertisements.

Many websites wouldn't work without JavaScript and you have to be paranoid when you think that JavaScript can destroy your PC.
I only use the built-in adblocker from Opera.

Enabled all the time, Opera user

i dont even know tbh lol

I'm not worried so much about javascript exploits, what bothers me is third party info gathering and tracking. I use No-Script (in addition to a bunch of other blockers and privacy add-ons) to enable JS on a site by site basis. After I started using No-Script, I noticed how many sites use trackers, analytics and data-mining services to watch what you're doing on and off their site. This was really driven home when I started noticing that eBay was suggesting items that I looked at on unrelated sites, or searched for, that it should have had no idea I was looking at. I found it really creepy that they were stalking me across the internet so I decided to make sure no one could ever do it again.

I'm rolling with Adblock Plus, Adblock Plus Pop-up Addon, BetterPrivacy(for those so called "super cookies"), CookieSafe(for regular cookies), Flashblock, Force-TLS, Ghostery, HTTPS Finder, HTTPS-Everywhere, Perspectives(take that man-in-the-middle attacks), RequestPolicy(because I decide if I want to see any third party content on a webpage), and User Agent Switcher.

Come at me Internets.

Meh, I'm not worried at all. Using Adblock only here, I found NoScript kinda annoying when you know if the site are safe and I must whitelist them manually.

I got infected by many viruses recently because of Java exploits... I uninstalled that crap. I read about some critical exploits in Java, but I think they fixed it already...

Some of you seriously need a better anti-virus, and to learn what the difference between Java and JavaScript is before you get infected by your own porn sessions. Btw, my JS is enabled always, else the web purely sucks in normal html.

I only use Adblock Plus and Adblock Plus Pop-up.
Please,explain to me.

Im on ubuntu and chromium and I have js always on. Adblock is all what I need :)

I browse with JS enabled. Chrome is the only free browser that has a decent sandbox right now.
Still, I have click-to-play enabled, so to use java or flash applets I need to click on them.

I got no virus since I installed chrome 5.

Firefox/IE9, both with JS enabled, adblocking in both. Never got any infection - EVER. Just use the round thing on your neck and you should be fine.
Regarding the tracking - I don't care.

Why would anyone disable JS?
If you're that paranoid use a text browser.

Browsing with JS, with ads. Only thing that's disabled is Flash because it causes performance problems (FF with hundreds of tabs open).

i use noscript to disable javascript (and all plugins) by default, and then just enable it for sites i trust and find useful / necessary. i'm not worried about "destroying" my computer since that sounds more extreme than what's actually possible, but i don't want my computer spending time doing unnecessary things. so google analytics and tons of advertising scripts never see me. i also use opendns to completely block a small number of advertising servers, which has actually made youtube completely video-ad-free for me :)

Errrr...no you couldn't destroy your PC with some JavaScript lol.

There is no point in blocking JavaScript, Java, Flash or other content in a browser ... Just make sure you're using Standard User account instead of Administrator for daily usage, and you will be safe enough.

Whoever tells you to turn it off is still using IE6.

Here is a simple and safe use of JavaScript for some fun. LifeHacker: Recover Any Password in Firefox with the Asterisk Revealer

Take a look at this great sites:
http://ip-check.info/?lang=en (Hit "START TEST!")
https://panopticlick.eff.org/
Then you will know why its important to block all scripts with NoScript, and use Ghostery, RefControl, HTTPS Everywhere, Better Privacy and Google Analytics Opt-out Browser Add-on for privacy purposes.
Moreover I recommend you Outpost Firewall Pro (lifetime license), which include many options for web blocking, like script blocking, cookie blocking, flash blocking, etc. It also has an host editor and an ip-blocker.
Also I hardly recommend you installing Bleachbit to seriously clean your system from junk, supercookies(LSO's) and eavesdrops.