...KCaving.

http://phys.org/news/2014-12-high-engagement-comment-sections-curb.html

In a nutshell some people have done a study on comments on political stories and found that

in comment sections where the recognized journalist engaged with the audience, it had a statistically significant effect on the tone of the comments. Incivility decreased by 17% and people were 15% more likely to use evidence in their comments on the subject matter.

Click to expand...

I do not think it is too much of a leap to extrapolate these findings to forums like this and to the recent upturn in the tone of UKC.

Keep up the good work Pegasus and Badlad 

Oh thank you - you've made my day