Lee Odden speaks out on Parasites in the SEO Biz in one of his "rare rants".  I know how he feels.  According to Lee

" ….I’ve been dealing with more and more parasites lately, so here’s my new definition:

• Competing agencies that do not specialize in search marketing, but are too lazy to learn. They leech off of your information and good nature for their own betterment offering nothing in return and call it “co-opetition”.
• Prospects that try every trick in the book to suck how-to information out of you in the name of “learning about the SEO process”.
• Content spammers, copyright and trademark hacks who will take every last opportunity to rob you of your brand and content.

I don’t know that the answer - I don’t yet have people leeching off of me, or trying to, and I give my information freely because I believe that he or she or gives, receives more. 

On the other hand, if people use my information, my hard won experience and claim it as theirs - that gets me MAD!!!!!!!!!!!!!   If that’s what Lee is talking about…….I’d go after those people with an axe if I could.   That’s my rant.