Because they are scumsucking profiteering liars.
Case in point: a few people had a conversation with Eric Hovind and Sye Ten Bruggencate, a couple of dishonest frauds. This was not a commercial transaction.
"We did not agree for God Quest, inc. to edit the conversation we had with Sye and Eric. We did not agree for God Quest, inc. to use our comments for any commercial purpose of any kind. We were not asked if God Quest, inc. could use our comments in this way. We specifically said the whole point of our having the conversation was that it would not be used in this way."