It's very common, and as long as there is someone, some say fools, willing to part with thier money, there will always be scams and frauds. I may belong to the same blog as you, and seen it also. Just the other day, another blogger on the same site posted that bogus John Hopkins e-mail from 2008, and was quite a discussion. Today, I posted this FDA PDF..Beware of On-line Cancer Fraud.

http://www.fda.gov/downloads/ForConsumers/ConsumerUpdates/UCM143670.pdf

10/09 T1N2bM0 Tonsil
11/09 Taxo Cisp 5-FU, 6 Months Hosp
01/11 35 IMRT 70Gy 7 Wks
06/11 30 HBO
08/11 RND PNI
06/12 SND PNI LVI
08/12 RND Pec Flap IORT 12 Gy
10/12 25 IMRT 50Gy 6 Wks Taxo Erbitux
10/13 SND
10/13 TBO/Angiograph
10/13 RND Carotid Remove IORT 10Gy PNI
12/13 25 Protons 50Gy 6 Wks Carbo
11/14 All Teeth Extract 30 HBO
03/15 Sequestromy Buccal Flap ORN
09/16 Mandibulectomy Fib Flap Sternotomy
04/17 Regraft hypergranulation Donor Site
06/17 Heart Attack Stent
02/19 Finally Cancer Free Took 10 yrs