despite everyone’s obvious anecdotal experiences that are just too bullshit to ignore.
I spent a month with my wife talking about cat food whenever we would remember to. Never got an ad for cat stuff.
Also one time I was thinking about traveling to the Caribbean, and I got an ad for the Caribbean. Do you think they were reading my thoughts?
It's a type of bias where you notice when something does happen, but not when it doesn't. Have you ever thought about the hundreds of things you talk about every day that you haven't gotten an ad for?
They don't need to listen to your convos. Obviously they would love to but it's far too risky, but the information Google has is plenty to make pretty decent guesses as to what you have been recently exposed to and (subsequently) may have spoken about.
But you've already poisoned the well (another logical fallacy) and labelled any dissent as coming from neck beards, so it can be safely ignored. Good for you.
It's about the principal of throwing out our own principals because we hate someone!