Unless you are mentally disabled in some way, anyone can be successfully marketed. People like to believe they are special snowflakes that can rise above the influence of marketing, but hit them with the right marketing message and you got them.
> People like to believe they are special snowflakes that can rise above the influence of marketing, but hit them with the right marketing message and you got them.
Maybe so, but the success of marketing has different probabilities for different individuals. So, if you're Facebook, it wouldn't make sense to invest in de-poisoning poisoned tracking data if they'd have a low chance of success with their marketing messages. Also, I'm doubtful any de-poisoning technique is perfect, so the resulting profile is probably worse for targeted marketing, all else being equal, as well.
