Earlier quoted context omitted.
> Know that we don't know what kind of deals are happening behind closed doors in these two last days of manipulated activity. As the saying goes: If you're at a poker table and you can't tell who's the fish, get up. You're the fish.
If you know that there is only one fish and a lot of sharks, sure. But with payment for order flow you know there are tons of other fish at the table. That changes things, as you only have to beat the other fish to get a small payout. And the sharks aren't focusing on you in particular, so you might get lucky and beat the sharks.
To quote Obi-Wan: "Who's more foolish? The fool or the one who follows him?"