The thing is that the Jeremiah Duggan conspiracy theory is about as big as the
Backpacker murders conspiracy theory. There are indeed "Free Ivan Milat" web pages and societies out there protesting his innocence. There is a similar page to the Justiceforjeremiah one out there. And I could describe probably 3 popular theories as to what really happened:
1) He did it, but with assistance from his brothers and/or others
2) He did it, as part of an organised crime gang
3) He was framed for it because police couldn't figure out who really did it and didn't want to look like they had egg on their face
The most popular theory is the organised crime gang theory, and indeed if that had happened in America, it'd pretty much be an open and shut case that it definitely was organised crime. How they happened and so forth is stereotypical of a mafia hit. How the bodies were disposed of, everything points to organised crime. Except that officially Australia doesn't have any organised crime. And furthermore, because this case got so much publicity, and wasn't initially thought of in those terms, and because most of the more powerful crime gangs are too powerful for police to be able to handle, they were left with the prospect that in order to keep the public's faith in the police force they had to arrest someone. The big question is why they chose Ivan Milat.
There are of course a small portion of people who are knowledgeable about the case and still believe that Ivan Milat was solely responsible, but not many.
Now, where is that in Wikipedia's article? It's not there anywhere. There is no mention of it. Its not mentioned as a highly debated topic. Its not mentioned with any links to the various web sites saying names of people who there is evidence did the murders, nor linking to the various evidence. Nothing.
Wikipedia insists that they aren't supposed to do that because they have to tow the party line, and to state the official story. He was convicted in a federal court, and his own lawyer thinks that he did it. Ergo, that's it, Wikipedia can't comment on it.
So why then are Wikipedia presenting another conspiracy theory that is at best the same level of plausibility? What makes this more acceptable or more believable or more notable? It is hardly a bigger story, it is hardly a version of events that is believed by as many people. Why is there a double standard there?
What I am seeing is that, far from a neutral point of view, Wikipedia is choosing to not only not mention a conspiracy theory as being truth, but in one case to pretend that there are none that exist at all, while in another case presenting a conspiracy theory as fact. That is bias to the extreme.
Wikipedia isn't "devoid of conspiracy theories". They just choose which to present and which to pretend don't exist.