Your quote of Blutack
"Do be aware that once installed, AnyDVD hooks itself into your write drivers. I regard this as insidious."
Emphasis on "regards"
just because he thinks so. doesn't make it so, regardless of the fact that he maybe a moderator elsewhere (I don't think he is a software developer, but correct me if I am wrong)
I am sure if AD were insidious in anway, the scores of detractors would have lined our forums with reams of proof.
In fact as far as pros and cons go Blutach himself as not offered any cons while SS has stated it is harmless and is some security feature of the software itself.
I am sure that AD appears very insidious to scores of movie makers instead