I was kind of expecting some of the stuff in this article, but I was actually amazed that he was able to demonstrate the absurdity of carbon offsets without even getting into sticky topics like corruption (i.e. you pay for a tree to be planted which never gets planted, or the m² of rainforest you "protected" doesn't get cut down today, but in one month).
Someone has described carbon offsets as modern-day indulgences (https://en.wikipedia.org/wiki/Indulgence) - you pay someone to "wash away" your CO2-emitting "sins", and the less you think about how it works, the better you can feel about it...