We need laws to set standards at whatever the floor of "what a reasonable person would expect you can do" is. Safe, non-paranoid market participation isn't gonna happen otherwise.

Outlaw all the spying. Let non-tracking advertising, community efforts, and regular ol' paying for stuff fill the gap. We'll lose little but regain our privacy, which is gone unless we all do this (see: shadow accounts tracking people because their friends posted about them, Google mining your messages because you sent them to someone who uses Gmail)