We don't need someone to define what vitriol or constructive criticism is, they are established already.
The fact that some people attack any criticism, does not mean that there are not other people out there that just trash anything.
And if you have trouble understanding that, for example, including personal attacks or attacks on the capabilities of a company's members( naive or foolish writing among others have been used), is NOT constructive criticism, then I don't think there is any point in further discussion.
Some people are apologists and will defend anything, but others are just full of vitriol and attacks, and probably come from a different forum that specialises on that.
