I assume the higher than (I) expected dislike for C# is because of the Microsoft ecosystem, not the language itself. It will be interesting to see whether that remains so over the next few years as .NET Core and VS Code mature.
The answer is not really if the person 'likes' a language but more about if the person is looking for a job writing that language.
That would also explain why JS is so low in dislikes when it should really be one of the most disliked (there's a whole ecosystem of languages and transpilers that have cropped up just so you _don't_ have to write in it).