I agree with you- BBC Sherlock is a decent show, but Christ, it's getting EVERYWHERE. And that's not even mentioning how toxic and awful the fandom can be.
Yeah I don’t think that aspect about the fandom is specific to BBC or anything though, with any area where there are really large numbers in a group you’ll have cool people and invariably you’ll also have idiots, just as a matter of statistics.
What irks me is the constant failure to distinguish between BBC and ACD canon as if they’re both the same thing, and the failure to recognise differences where they obviously are different. Thinking of a trait BBC’s Sherlock has? Don’t generalise it to Holmes unless you’ve read canon and you know it’s there too. Will it kill people to refer to canon Holmes as Holmes? Is it so difficult to explicitly state BBC when that is what is being referred to? People go around calling Holmes Sherlock and Watson John regardless of what version it is when it’s really only BBC (and Elementary) that uses first names. People tag Sherlock everywhere and on everything that is mildly related to Holmes as if Sherlock is the default, and tag victorian!lock on canon posts and everything else as if those versions are somehow the anomaly. I would have thought that BBC was the anomaly against a tradition where Holmes is, by virtue of being Holmes, inextricably linked to the Victorian setting, and the Victorian aspect should go without saying.Want to tag victorian!lock? Go ahead, do that for the BBC Victorian Special (although it’s my understanding that there’s a specific tag for that anyway). But other versions have names of their own and they don’t deserve to be fudged into the great big void of simply ‘not-BBC’.