Recently a group of revisionists tried to liquidate your author’s arguments and activism by bringing up his past history of being in a variety of revisionist parties and over time changing his ideology. It is precisely because I was a member of these revisionist groups that I see revisionism for what it is. I was personally shown the ropes. But I just couldn’t do it. I couldn’t buy Trotskyism or Maoism, I couldn’t follow the liberal line, and eventually saw they were all hot air and no substance.
The propagation of revisionist theories is the advocacy of bringing knives to a gunfight. It revises fundamental principles of the theory and advocates for our slaughter. Liberalized “anti-dogmatism” in the vein of the Kasamaites, Titoites, Brezhnevites and Maoists doesn’t have the strength to stop an international genocide. The reason we have to combat revisionism is for the success of revolution, and the reason we must succeed is to stop what can only be described as a genocide.
All one has to do is think of one case of suffering, and then try to imagine it multiplied exponentially. The utter depravity of what world capitalism brings about is enough to make one physically sick. Revisionists advocate peaceful co-existance and collaboration with the forces responsible for this state of affairs. This is the hallmark of all revisionists from Tito to Kautsky to Kasama Project.
The Espresso Stalinist 
When people try to use your past to condemn you, despite the fact that you renounced those ideas, a friend of mine recommends the following response:
“Yes, I used to be a Maoist/Trostkyite/Mormon/Whatever. And guess what, there was a time when I used to wet my bed. I stopped.”