What is a troll? Through the medium of song!

This came about on an utterly mad on-line Mumsnet discussion about why people troll.  I make no apology for the blatant rip-off of Evita.

TrollVita
It won't be easy
You'll think I'm strange
When I try to explain how I feel
That I still have to troll
For no reason at all.
You won't believe me
All you will see
Is some sad act its true
Who has to make up random shit
And post it on here to get you

I had to let it happen
I had to change
Couldn't stay all alone in my flat
Looking out at real people
Staring at a blank screen
So I chose forums
Reading around posting everything new
But nothing impressed me at all
That's when I said fuck it! Troll you!

Don't cry for me there on Mumsnet
The truth is he never left me
I might have wrote it
But it didn't happen
I also didn't
donate a kidney

And as for bun fights and as for flames
I often invited them in
So you'd bitch at each other
it was all I desired!
I'd post illusions
so you'd give me solutions
and would promise me
Your care and attention and time
I fooled you with sock puppetry

Don't cry for me there on Mumsnet

Don't cry for me there on Mumsnet
The truth is he never left me
I might have wrote it
But it didn't happen
I also didn't
donate a kidney

Have I post too much?
There's plenty more I can think of to say to you
But all you have to do
Is look at me to know
That not one fucking word was true!