Letting people upload troves of information, and just dumping them to the public without going through and vetting them, isn't journalism in my book. He's a journalist in the same sense that a data breach dumped on pastebin is a news article.
The fact that some journalists are so vehement against Assange imho proves that he s a journalist. People always shoot the messenger
https://www.merriam-webster.com/dictionary/journalist 1.b: a writer who aims at a mass audience
Julian Assange: Technically a journalist.
https://www.bloomberg.com/opinion/articles/2019-04-17/is-jul...
I don't think it's a matter of explanation anymore. Whether Assange is a journalist depends on political affiliations. It's a shame that the trump election had to end up throwing out the baby with the bathwater by discrediting wikileaks. This kind of thing usually has unintented, bad consequences.