those people who don't have time or who don't like to write or those who don't know writing blog they are now a days making such kind blogs on ptc you can find more than 1lakh sites are on PTC and this is good but these sites are not the best all people don't like such kind of site and its easy to make because people don't writing review on it whether its good or bad people simply copy pasting TOS content from those PTC sites...Carry On...