Every situation is a bit different. Do I prefer civility and kindness? Absolutely. What happens when you take advantage of my good nature? I really don't have a choice but to change tactics. Probably not the first time, but I'll let you know I won't tolerate it again. Have I been accused of being a bully because someone only heard a more abrasive part of the conversation? Absolutely again. The funny thing is that I rarely, if ever, see those people jumping on the chopping block. People that jump in to help the screw up on their own time happens in the movies, but we don't live in movies.
As an example, iff you are a manager and you are working 10 extra hours a week because one of your people is continually messing up, for how long will you continue to be kind? Your personal life relationships start to suffer because of this person? How about when the rest of your team is also putting in 10 extra hours a week because the person is a real mess? Your boss is chewing your ass daily because you are late with a deliverable? The other 20 people on the team are upset because they can't seem to go forward. Nobody can get frustrated and tell that person causing issues to STFU, even if they attempt to pass the blame? Everyone needs to be kind to their "feelings" even though they are making a job miserable for many people?
TFA has nothing to do with bullying, it's about trying to get people to do what needs to be done. I'll add it's about unrealistic expectations where people don't vent in the workplace (or at least do not vent the same way as you). You may not think that the Kernel is a big deal, but it's Linus's whole life. He built it from scratch and makes his livelihood from the project. You can't really compare his perspective with an argument with a co-worker. It's more like seeing a master architect yell at a welder for fucking up a seam and not fixing it after being asked to fix it. Shit happens.
*steps off the soap box*