Blog Spam?

"What's with all this F* advertising? You people need to get a life!"

Of all the comments I've recieved after posting my blog last night, this was the only one that actually came from a friend. Maybe I'm naive, but I never thought I'd recieve f-ing spam on a blog site. Who do these people think they are? Do they really think I'm gonna believe their BS of "you're blog is interesting" followed by "Get weight loss tips from my site" etc..... Although it's annoying, I will amdit it's kinda funny and I wonder if there is anyone who is stupid enough to fall for that spam?