Hmm,...I agree that stake will find friends willing to sell out.
We are playing crapitalism, after all, and easy money is the sweetest.

Am I wrong thinking that voting full sp on 30 witnesses is alot more than voting full sp divided by up to 30 witnesses?

Rather than voting 1m sp 30x, each vote is reduced by concurrent votes on more than one, 1m sp on one, 500k on two, 333k on three, etc.

I fail to see how this would empower small accounts in any attacks.