I think some people just jump to conclusion without reading the whole post. This happened in the evening when I check my blogs, one of it has a comment. The commentator thought that the post is a giveaway or contest but I have no stated in the post whether it is giveaway or a contest. I have label it as info in the post.
This is not the first time and I am not sure why they are not reading the whole post but just post a comment. I know sometimes I did the same too.