[Seriy]

wharf, the artist you also describe as "sweet" - neither of whom do not speak ill, all smiling, proslyvesh intelligent. Many great artists have had a terrible character. Ilya Repin criticized by other artists in the strongest possible terms, here recently disclosed. So what? He had problems with selling their works?
Temperament - part of the individual. "Dear" is usually mediocre. And the one who spits, rowdy, bad manners and education - often talented and merchantability.
All that you describe is Salon.

I've read the LJ one artist, IMHO, a better artist, one who leads LJ, top professional. So, in other LJ is usually only fully komentiruet slop work fiasco. Moreover, the positive feedback. In fact - she was sorry for the artist, she wants to be nice, to support it at the time of creative bankruptcy, say encouraging words.
And in fact it turns out that it is well recalled only a very bad work.