This is the correct decision, IMO. I only use Facebook in a limited capacity (one phenomenal private group whose usefulness is unfortunately simply unmatched elsewhere, one infrequently updated page and a very locked-down, minimal personal profile). I think people need to understand what the purpose of Facebook is in terms of its function and constituent parts, in the Stafford Beer sense, and I think if enough people…
Given how many people do not yet use adblockers, I don't have much reason to believe that this will lead to significant amounts of people suddenly seeing this.