what's all the brouha about commissions

4%, 6%, 6.5%, what's the big deal. This is a free market country.
Who's to say that a buyers agent should get 3%. Why not 2%, or 4 or 6%, depending on the inclination of the seller. 
People can offer whatever commission- fee, incentive, prize, bonus, etc. - call it what you will, that they see fit in order to sell their house. And real estate agents are not thieves for accepting it.
They are only thieves when they put their own interests before those of their client's. And with just a bit of observation, that insidious little characteristic is usually quite obvious, long before anyone starts licking their chops over commissions.