Why? How is BA able to talk shit about boards given for free, but you can't?
If you won a prize and got a free board, yeahh you're going to love it. You just won the lottery. You're excited.
If you are given a board to review then review it. Hell if someone gave me a board, and told me to tell them what I think, I might even nitpick it more than normal.
I think we need to put the bias accusations away, until there is actually bias. Like, there is a major flaw with a board but every tester ignored it.