A lot of people joined GG because there is/was no alternative for people who held views opposed to those in the mainstream. It's one of the only groups fighting for unmitigated free speech on the internet. It's made for some strange bedfellows but in the end it's an anti-censorship campaign (that happens to have identified the group pushing for censorship).

From what I've seen, they only seem to be fighting for free speech that agrees with their perspective. See, for example, the campaigns to convince advertisers to pull their ads from sites that publish articles they don't like.

The campaigns themselves are the free speech.

Free speech != profitable speech. The journalists can say whatever they want. If they want to make a profit doing it selling to an audience they're simultaneously beating up, they'll have to deal with the antagonistic relationship they created.