I have noticed that some of the more enthusiastic whistle-blowers against the Church of Scientology tend to jump on comments and articles that are not, actually, all that pro-Scientology.
The fact that an article or comment isn't completely negative about Scientology does not warrant an attack.
The fact that a person might say something nice about Scientology or might protest against "attacking a religion" does not necessarily mean they are a Scientologist. With fewer and fewer actual Scientologists, it is more likely this will be the case as time goes on.
To viciously attack some article or comment when a more reasonable response would be more appropriate, makes us Scientology critics look like the insane fanatics. To attack a commenter, who really isn't pro-Scientology, looks very bad. A vicious anti-Scientology attack can invalidate everything a more reasonable whistle-blower might be trying to say.
Err, if you will, on the side of milder, more reasonable responses to articles and comments about Scientology. You can say the same things, but from the viewpoint that the author is merely misinformed. This is tremendously effective. When some Scientology sock-puppet attacks you, you own the high ground. When a Scientology apologist insults you and makes crazy accusations, you come out far, far above them.
If the author is not a Scientologist, you will get back an intelligent response and will, perhaps, change their mind about the Church of Scientology. If you attack the author, you will solidify in their mind the idea that critics of Scientology are insane fanatics.
Understand that you cannot change a Scientologist's mindset, but you will influence the lurkers. Keep that in mind. Do not engage in a battle with a Scientologist, just expose their lies.
Certainly, every single Scientology lie should be debunked, but it is most effective when done calmly, reasonably and with as much respect as you can muster.
Let the Scientologist froth and foam, insult and accuse. Let us take the high road, always -- because it makes them look horrible.