Originally Posted by
peach45:
“They seem to be trying to cater to a particular strand of fandom though. Those who frequent sites like Tumblr and watch for the bromance between Sherlock and Watson. All the shipping, Johnlock, Sherlolly, Mysrade 

is all very strange, but I get the feeling that the writers think that's why we all watch it, and not for the crime solving. It's a shame really.”
I don't look at any such sites so I don't know. However, Gatiss and Moffat are, I understand, both fans of Sherlock Holmes, and that seems to come over in the first 2 series, admittedly less so in this one. I don't see why anyone would be affected by third parties in this way. They got where they are by doing what they like, and in doing so gained fans for their style and content. Why any need to change?
As an aside on this. I'm sure they must have planned (and possibly even written) series 3 before series 2 was filmed. So, the false fall stories were already planned (otherwise they would have had to go back to film them again). If that were the case, it's not that they responded to the fans, they just anticipated (and possibly added fuel to) fan reaction and hype. The concept of a fan base is, in my opinion, an important part of any Sherlock update. He had a fan base in the original stories, based around Watson's write-ups. This is just the present day equivalent. Knowledge of what would happen will have steered the writers in their approach. It doesn't mean they are at the whim of what some fans think.