"...Thomas Kohnstamm admitted to the Daily Telegraph that he didn't really go to Colombia before writing the Lonely Planet guide to that country because "they didn't pay me enough." Instead, he pumped a girlfriend who worked at the Colombian Consulate for information. The publisher is now reviewing the titles Mr. Kohnstamm has written for it..."
The guy also claims he dealt drugs in order to raise food money during one of his assignments in South America. Interesting story. I usually trust the Lonely Planet and other guides, and enjoy their writing style.