Lennart Poettering recently drew attention to the abusive nature of some commentary within the open-source community in his post https://plus.google.com/+LennartPoetteringTheOneAndOnly/posts/J2TZrTvu7vd
and in relation to that Linus Torvalds recently was interviewed ( http://readwrite.com/2014/10/16/linux-linus-torvalds-community-mistakes-toxic-environment
) about it.
My take from the article is that.. well, Linus comes off as quite a despicable personality. Sure, he started the whole Linux-kernel and he's done a lot of things with and I certainly do hold his technical achievements in high regards, but then uses language like, say, this: "[specific folks] ...should be retroactively aborted. Who the f--- does idiotic things like that? How did they not die as babies, considering that they were likely too stupid to find a tit to suck on?"
He's literally saying that someone should murder that person and for what? Making some stupid decisions coding-wise? He says, quote, “One of the reasons we have this culture of strong language, that admittedly many people find off-putting, is that when it comes to technical people with strong opinions and with a strong drive to do something technically superior, you end up having these opinions show up as sometimes pretty strong language.” -- That's just an excuse. People have strong opinions about pretty much anything, and yet not all places with people with strong opinions devolve into throwing the same kinds of insults and death-threats about as the Linux-community.
You can be blunt and point out someone's mistakes, that's fine, there's no need to be dancing around the issues in some ill-advised quest for being seen as a pleasant person in every situation, but you can, and IMHO should, try to form coherent sentences without devolving into actual insults and, for someone holding such a high status in the community such as Linus Torvalds, they should remember that they may be viewed as an example to be followed.
Disclaimer: I do admit to having also devolved to insulting people, but at least I do it a lot less frequently and I do still actively try to unlearn that trait.