In the particular case of the linked article, it is a personal issue, not a software issue. The software is using bad defaults, referencing servers that the own

In the particular case of the linked article, it is a personal issue, not a software issue. The software is using bad defaults, referencing servers that the owners explicitly say not to reference. The response is, basically, "I'm too lazy to fix this issue". That's not a software problem, it's a problem with the lead dev's behaviour. While we shouldn't resort to outright insults, we also shouldn't shy away from calling out bad behaviour, when it's related to the software at hand.