Phasmid: Wikipedia is dreadful for anything controversial. It is specifically set up to use secondary sources, and for anything current and controversial that means journalistic articles, which makes any subject criticising journalism extraordinarily biased as journalists don't tend to criticise themselves. The gamergate article is also absolutely infamous for being... deeply problematic in terms of edit wars and the like and being camped by tame admins etc.
(The usual illustration of the weakness of wikipedia is that a writer saying that, for example, gravity doesn't exist
cannot be countered by the empirical fact that it does- it can only be countered by enough writers saying it does, and if no one says that then gravity doesn't exist according to wikipedia. The other weakness of wikipedia if, of course, that you can have a 12 year old edit an article on black holes that has been written by Stephen Hawking, and so long as he gets his citations right the 12 year olds version would stand.)
I have my reservations about wikipedia and the general fashionable wikilogic of knowledge being a matter of beliefs polularity (knowledge is actually not "democratic" at all - its construction and propagation raises many problems but they cannot be solved by populism). However, in this specific case, it's hard to find sources
less creepy than wikipedia. Because the reality is, gamergate is mostly a blob of noisy outrage about "cultural marxism", "feminazis", "political correctness", "gay agenda", "SWJs" and other "alt-right" buzzwords, that pretty much disqualifies the journalistic issues at its core. It makes curiosity about this original element a bit difficult to satisfy. It's a bit like wondering about "unidentified flying objects", when 99,9999% of writings about it come from the flying saucers enthousiasts, conspiracists, mystics, occultists and gurus who are the majority of people sufficiently motivated to write about it.
The additional footnotes provided
there are valuable (as raw sources), but I'd skip the gamergaters' own narrative, given how transparently embedded it is in a broader, ideologically dubious one.
We all attribute legitimacy to very different sources and markers, with keywords (and concepts, or general discourses) acting as signs of validity, invalidity and deafening alarm bells. The reality is that, whatever its origin, this "journalism ethics" movement has drawned itself in a very specific, unrelated current, with very strong and polarizing identity markers. Hence the irredeemable shift of signification. If there is something interesting about it way way upstream, it was to be found where these markers don't flourish as much as, say, in this thread. So, yeah, wiki wouldn't be the worst starting point.