Opinion on Personality Tests?

A lot of people nowadays criticize Online Personality Tests, calling them "bs" and such. What do you think? I think they are a good way to find out more about yourself, yes they aren't 100% accurate but they come close in my opinion. My favorite is the Myers Briggs Personality Type Indicator.

I've always found that personality tests try to put a blanket "judgement" over you depending on your survey results. It's almost treading on the same ground as horoscopes... However, with that being said I'd be interested in knowing what this Myers Briggs test is?

I'm not that kind of guy who would do this tests ... honestly, i think they are just bullshi*.