Two beauty bloggers have makeup companies. Beauty blogger A starts outperforming beauty blogger B. Beauty blogger B still has a significant audience. In order to thwart his direct competition, beauty blogger B starts soiling the reputation of the other blogger. The statements he make are simply leading comments, so he cannot be pursued for slander or libel. As a result, beauty blogger A sees a significant drop in sales.

Did beauty blogger B need to do this? One could argue that he should have let his product speak for itself. Still, he saw financial gain from these methods.

Who is in the wrong here?