>>22
I just read this again and want to add a thought: I think you think of politeness when you say sincerity. While sincerity and politeness seem to be related and oftentimes appear together there's actually no connection between the two if we look at their definitions.
Being sincere can be terribly impolite and being polite can be terribly insincere.
The challenge is to be both and that's quite rare. If we imagine it as a scale with sincerity on the left and politeness on the right, finding balance is important.
I would argue that this place sacrifices some sincerity for the politeness because we're all more interested in a calm atmosphere but there's nothing wrong with that because there's way more sincere boards than polite ones.