I get the lively debate idea, but wonder why it has to be hammered and hammered and hammered into the ground?
I earn a decent wage. I have no clue what other people earn, and do not care. I have mates who work for cash. One guy does landscaping and fencing, another cleans windows, gutters etc, neither of them declare everything they earn to the tax man.
I don't see anyone picking on them in the pub over it, so why should it be done to death here.
I quite like seeing the girls post on a forum like this, but topics like this will drive them away, and then there will be a bunch of grumpy old men left, and the forum will lose its impact etc etc..