A newbie steps in, gets welcomed, we tried our best to make
him/her feel at home, then, less than a week later, this very
newbie makes his/her hasty exit, criticizing us harshly in the
process. And then, he/she probably feels guilty about his/her
judgement upon us, hence deleting the entire post.
And then, I receive a PM from the person criticising me (so what's
new?
). Essentially, it was a 'bleeding heart'
msg,
trying to portray him/herself in angelic terms, whilst blaming me
for flaming. 
Oh PUH-LEEEEES!!
You have the guts to insult a bunch of people with no rhyme or
reason, have the guts to face up to the consequences!
Something tells me this is one of those well-off kids who have led
a cushy life and thinks the whole world ought to bend to his/her
will and cater to him/her. 
I say, 'Welcome to the school of hard knocks!' 