They are not being paid :) I am Turkish, and believe me every, but every apps' review section is full of these stupid 1-star reviews. Turkish apps, english apps, popular apps with ~5 million downloads, unknown apps with ~1000 downloads.. It is mind blowing. They don't know they are hurting developers and firms. Actually some of them thinking that they are helping with their "positive comments". They are showing their appreciation with a positive comment on the front page (with the help of giving 1 star rating).