An excellent discussion of the pros and cons, with useful comments from 'tptacek, is at http://news.ycombinator.com/item?id=359155 http://news.ycombinator.com/i

An excellent discussion of the pros and cons, with useful comments from 'tptacek, is at http://news.ycombinator.com/item?id=359155 http://news.ycombinator.com/item?id=359155. Another one: http://news.ycombinator.com/item?id=2925222 http://news.ycombinator.com/item?id=2925222; see especially the comments by 'grellas and 'tptacek, as well as the discussion between the latter and 'idlewords.