OMG WHY THERE SO MUCH MSG IN ME FOOD PLZ!

I'm reading yelp reviews trying to find a good Chinese restaurant near me (there are none) and every review for every restaurant has someone bitching about MSG.

First off, how does anyone know whether the food has MSG in it? Are they buying some food and then shipping it off to a lab for analysis? And what do they think MSG tastes like? I guess it would be funny to point out that EVERY SINGLE double-blind test ever done on MSG has concluded that:

1) People can't actually tell whether food has MSG in it.
2) Food with MSG in it doesn't have any harmful or even unpleasant side effects.

Everyone is convinced that MSG is bad for you because everyone is convinced that it's bad for you, so whenever someone doesn't like some Chinese food, they immediately scream "oh it was that MSG!"

Jackasses