Commissions are a major reason why the market lacks liquidity. When someone buys a house, they're immediately 6% below market value, just from commissions.

To each their own.

Redfin was a fantastic experience for us. The advice was rational and unbiased (they get paid off of reviews, not commissions, if I recall my research correctly).

And the house sold, which is wonderful.

Also, kickbacks may be illegal, but that doesn't mean they're uncommon or that the laws would be enforced.