This is not intended to judge. Both in real life and on the Internet, I notice that some people (a) habitually pick out details in a discussion that they disagree with, while others (b) try to look for a common understanding with others' points of view--not just with me, but with most people. This type (a) does not often explicitly state whether they agree with the overall point (though sometimes they do), while (b) does not often explicitly state what, if anything, they disagree with. Both have their obvious 'flaws' if taken to extremes.
Where do you fall on this continuum? (chalk me up as (b), for the most part)
What do you think drives this? Is it as simple as a focus on ideas versus a focus on harmony? Does (a) subconsciously attempt to distance him/herself from other people? Is (b) a people-pleaser?