word of mouth is typically a one-by-one recommendation, where doing your own research is straightforward and quick. ie, if a friend recommends a movie for you t

word of mouth is typically a one-by-one recommendation, where doing your own research is straightforward and quick. ie, if a friend recommends a movie for you to watch, you might check it out, read the reviews, and then add it to your netflix queue. with a long list, doing the due diligence becomes orders-of-magnitude more labor intensive, so users are more incented to just copy/paste an entire list. in the case of netflix queues, perhaps there isn't too much at stake... but with a domain blacklist, SEOs and spammers have their entire livelihoods at stake... if this extension takes off, and if google starts using this data, i would expect well-funded SEOs to start heavily promoting their lists (with their sites omitted, and their competitor's sites included). of course hacker-news users may be immune from such tricks, but we represent just a minority of the data that google will get from this tool... if it goes mainstream, i am sad to admit that my parents are likely fall for "follow these simple steps to dramatically improve your google results"