I'd say that the bitchslap (that's what we call negative karma) came because your first post wasn't an introduction at all. It was a link to your blog/article.
While that isn't the end of the world, it's a little impolite.
Now, all that said, the bitchslaps MEAN NOTHING. They have no substance, no meaning, and you shouldn't worry about them. Because if you do, those bitchslaps tend to procreate and the more one bitches about bitchslaps, the more one accrues them.
Take a look at my count and you'll note that apart from a silly quest a year ago or so to accumulate all the bitchslaps I could (it was a slow news day), I really, truly, honestly don't care about any of that.
It's just another way to have fun.
Welcome, btw, and enjoy yourself! Life's too short to take it too seriously!