> If the number of people who visit your site with JavaScript disabled is less than the number of people who visit using the Opera browser, does it really make sense to add [number of supported browsers] x [JS on | JS off] permutations to your testing workload?
If your site doesn't work for people with JS disabled, you're unlikely to see significant traffic from people with JS disabled.
If your site doesn't work for people with JS disabled, you're unlikely to see significant traffic from people with JS disabled.