Okay then lets start this simply.
The shows very base idea is so stupid, that im shocked anyone would like it.
Lets start with the basic overlying plot.
"There are a group of nerds, or Geniuses even, who live in a apartment across from a generic hot chick. But the best part is that the hot chick is taken ironicaly. Throughout the show, the nerds will get in a series of problems relating to non nerdy things- Girlfriends, for example. Then the nerds will react in a predictable way, and this will be the main source of the series comedy. To stay Modern, we will use certain situation topics to intrest the audience."
Imagine thats the sales pitch. Yeah. Doesnt look brilliant, but eh, good things have been done with less.
Okay, step two when choosing how a TV show will work is the Audience. There are dozens of types of people a show can be aimed at- Women, Men, Racial communities, the elderly, the British, Americans, Smart people, Dumb people, Tall people, Short people and so on. It is often that several of these catagories will be fufilled when creating a show.
Now, Using the "Sheldon's WoW account gets hacked" Episode, who exacticaly are they targeting? By stating the words "World of Warcraft" you guarantee that Every single World Of Warcraft player will sit up and take intrest. With an advertisement saying something like "This persons world of warcraft Account got hacked" almost every single World of Warcraft player will sit up and say "I can Relate to that" (Not litteraly, but you know what i mean).
This makes the World of Warcraft players an audience.
Then they realise the entire episode, and from there the show, is a entire show decicated to PICKING ON NERDS IN GENERAL.
I mean, within That world of warcraft episode alone, there are about twenty things that make fun of the nerd. The sheldon character attempts to murder someone with a BLADE OF AZZINOTH or something, The indian guy claims "I will have sex with a troll to get information" and that World of Warcraft is really a seedy blackmarket full of trolls.
And sure, this could be fine. COULD BE.
But then the last thing occurs- the creators of the episode alienate the World of Warcraft viewer by simply telling lies about the game. Draenei cant talk to Trolls, Trolls cant sit around in Alliance Taverns, You dont ahve to cross the ingame world to talk to someone, If your world of warcraft account is hacked, it is easily retreavable (Ussialy) and these brilliant minded nerds of the 21st century managed to get haced by some guy living in his moms basement.
What im trying to say here is that;
First, the show appears to be aimed at a certain nerd Demographic, only for the nerd demographic to be the but of the jokes.
Second, Said nerds are misrepresented as complete morons with no life whatsoever, who are willing to have Gay sex in order to gain information in a online world,
Third, The shows basic make up -Insecure guys living in close proximity to a hot girl- is something so damned common that its not cool.
So yeah, im not surprissed that "Some nerds hate Big Bang Theory"