What you are taking as hostility is just the feedback from the information supplied. Its coming out that there was a reason for the angle you took the shot from. Without that information it just looks like someone who doesnt know any better, trying to be different took a picure from a bad angle and posts it on the internet, saying arent I clever for doing this. If you had supplied some information along with your photo then with a better understanding why you did it would certainly soften the comments made. Im sure you have heard the expression "garbage in garbage out". It seems to fit here nicely so to paraphrase that a bit "nothing in nothing out". It never hurts to explain what your intentions were or why you think your shot is worth posting especially when its such a break of the rules such as this shot.