On other websites it's trolling. Here it's not.
People here are blunt about stupidity, sure, and maybe it has a more cutting effect because it's more likely they're actually pointing out stupid mistakes, rather than just name calling or something.
Here you're derided in a more accurate, skilled fashion.
I for one do not think it is a good thing or something to be proud of. Criticism and derision are different and being toxic or caustic just brings the level of communication down. It does not reflect well on our industry either.
I don't believe that it was trolling.