I don't think any of those messages are nasty. It looks like a team of people who feel comfortable enough to vent to each other, while not taking themselves too seriously.
I know this is now an old thread, but just seeing it I feel it's worth responding. It is absolutely possible to be earnest and sincere in communicating real feelings and conflict without resorting to this ridiculously aggressive communication style. The alternative does not have to be fake or polished over.
Regarding the last part, it was just a meant to be a funny jab, don't take it too seriously. I was just trying to prove, using your own words, that on the internet it's really easy for anything to turn into a binary choice.
You chose a less known word, a "fancy" word, and I pretended to be offended by it.
Just like Qt tried to add what they considered some funny lines to their examples, and several people here considered those lines "cringy".
Unless everything you say or present is bland, you can't really escape criticism. That's why many companies don't bother for these situations where being funny/interesting doesn't matter and they just "lorem ipsum" their way to the bank. There's nothing to gain, only to lose.