It is be honest to 100 %. My story is little different.
My blog had one pagerank more hight and then we have decided that he musted write two review one for me and one for him. ( exchange article )
I waited much time that he writed the 2 reviews.
After some time ( 3 weeks ) he contact me and he said that I must write the review for him. ( when we have decided that he write for both ). I am refused to write the review for him.
However alexross you don’t worry. thera are so many scammers in internet that you can’t believe.