Well, the gian wars have been around since the HGSS days when he started the coverage.
First, many other updaters started Flagging and Disliking him. Mostly because he "stole" their subscribers. Many people kept saying he was stupid, he lied (he did lie about that Hoenn map, and he had some Dusk Gold and Dawn Silver fakes) and that he was infirging Nintendo.
When he got totally banned off YouTube, he made another account. Accounts fell, day and night and one day he stood up and said "That's it, I'm done.". He had a hiatus, and he came back for BW. Now he's making the walkthrough (which I think is finished).
I hate anti gianers. They think they're the best for standing up to "God". No they're just stupid. I am glad most of them stopped the wars, and gian can finally make some coverage :-D I am a fan of him myself.