I think calling Assange a journalist is very debatable. He certainly doesn’t comply with the ethical norms of the profession.
Valerie Plame would like to have a word with you.
If we keep going down this road we'd end up with No True Scotsman. The reality is "traditional" journalists have done this - Assange is not an outlier in this regard. If we tolerate the "worst" of the traditional (which US society clearly does), then we can't use this as an argument against Assange.
I probably shouldn't have used the word "never", but the fact that the Valieria Plame reveal was such a big deal is basically the exception that proves the rule that it is highly unusual for a journalist to reveal this information.
Assange is certainly an outlier in the number of people who he exposed and the reason for exposing them. He reportedly said on the issue that "they're informants. So, if they get killed, they've got it coming to them. They deserve it." [1] Maybe you think that is a No True Scotsman argument, but I really can't imagine a well respected journalist showing such a complete lack of concern for human life. A traditional journalist would generally required some reason of tremendous value to justify putting those people's lives at risk. Assange's reasoning instead appears to be "They deserve it."
[1] - https://en.wikipedia.org/wiki/Afghan_War_documents_leak#Info...
It was a big deal because people wanted to score political points, not because of a breach in standards. The more relevant point is the standing the journalist still had in society - he did not lose his job for it, let alone be prosecuted for it.
The quote you provide is taken out of context - at least from the Wiki page it is not clear if he is referring to the names that were leaked, as opposed to the ones that they ultimately decided to redact. I suspect the latter because it says "initially refused".
> but I really can't imagine a well respected journalist showing such a complete lack of concern for human life.
When you add the "well respected journalist", we really are in No True Scotsman territory. If all you mean to say is "He is a lousy journalist," then we have no disagreements. Without that qualifier, have you thought about extreme views held by existing, famous journalists? How much of an outlier is Assange compared to other "extreme" but established journalists?