Facebook builds a data profile on you even if you don’t have an account with them. But go ahead and persist in thinking all will be okay if you simply boycott them.
It never ceases to amaze me how good FB is at targeted ads. Some advertisers offer very good prices to use FB for transactions.....I don’t know if it’s just the advertiser, or if FB is trying to entice consumers into their web. Today, I ordered a really nice winter coat from Zulilly for $25, including tax and shipping.