Just a few thoughts on constructive criticism.
1. No one likes it, but everyone needs it.
2. The truth often hurts, but will indeed set you free.
3. If someone has an honest criticism of my work, let's have it but if you simply don't like my art, I won't shed a tear over it.

Cause and effect:
Okay, tell me this does not look like the thing from those gawdaful JJ Abrams movies:

[link]

and when I called it "Star Trek into Dumbness" I got this response from the artist:

NO!
It is not!

Now let me explain the history of the uss constellation!

Constellation 1017 was a ATM model from 1967 she was a model like this ship, she never got the chance like some starships had!
and you have the guts to tell me a nice model that i worked hard on to help boost Constellation to make her rise again! would be treated like a dumbness

you never, EVER!!!!!!
Comment on my work ever again and you better start thing what you have being saying to other people because not a lot of ships ever get a second chance!

At this point I have to say I've never heard of the ATM, but if AMT released a kit like this back in 67, Mum would have got one for my birthday (though Batman was that year's birthday theme).
And to all artists on dA:
I might offer a comment, coarse or clever but I call them as I see them.
You will never grow as an artist if you need someone pumping sunshine up your ass---but of course, the real artists already know that.

Now if you'll excuse me, there seems to be a large gathering of torch and pitchfork salesmen at my door, I'd best see what they want.