Context: Most videos enable users to leave comments, and these have attracted attention for the negative aspects of both their form and content. In 2006, Time praised Web 2.0 for enabling "community and collaboration on a scale never seen before", and added that YouTube "harnesses the stupidity of crowds as well as its wisdom. Some of the comments on YouTube make you weep for the future of humanity just for the spelling alone, never mind the obscenity and the naked hatred". The Guardian in 2009 described users' comments on YouTube as:

Question: Most videos enable users to do what
Answer: leave comments

Question: What has attracted negative attention about comments on youtube besides their content?
Answer: their form

Question: Time in 2006 wrote that youtube harnessed the wisdom and what else of humanity?
Answer: stupidity

Question: Which magazine wrote about youtube in a 2009 article on user comments?
Answer: The Guardian

Question: Some of the positive aspects of youtube might be that it provides what on a scale we've never seen before?
Answer: community and collaboration

Question: What did Time say about YouTube in 2009?
Answer: Unanswerable

Question: What did the Guardian say about the comments on YouTube in 2006?
Answer: Unanswerable

Question: What did Time praise in 2009?
Answer: Unanswerable

Question: What can users leave on all videos?
Answer: Unanswerable