Huffington Post isn't a scraper site. Aside from the original content they produce, they republish blog posts with permission from the authors. If you have an example of Huffington Post literally cut-and-pasting content from someone without attribution, please share.

I also assume that by "HuffPo investors" you mean AOL? Huffington Post is a fully owned subsidiary.

(Disclosure: I consult for Huffington Post)