Sadly, for me in particular, I sort of remember and I’m probably right, but I’m ready to run away just in case it’s otherwise. My politeness comes from allowing others to correct me, which I do. Sometimes. Be honoured.
There are subjects in which I have formal training and extensive experience in. Here I speak with authority and don’t use slippery language; I may even cite sources.
There are other subjects that I read about once probably somewhere on the internet at some point in the last 25 years or so. Here I will phrase it as “If I understand correctly” or I might even pose it as a question inviting others to correct me.
I went to flight school during the time when we all thought System of a Down had recorded a song about the Legend of Zelda. If you don’t have an internal rating system about how reliably you “know” the things you “know” you’re probably not worth listening to.
I say that to lower the expectations of me, so in the event I’m wrong, I could pass it off as “I misremembered”
Which is why people should stop saying it. It’s meaningless. Get to the point.
I feel like this is something that women have to do a lot (not that men don’t) to avoid being thought of as overly aggressive. I hate it.
I once had a (male) boss tell me (female) that to be successful as a leader in our engineering industry as a woman, you have to be a bitch. He was trying to encourage me to be less polite and more confident, but he also made it clear exactly what he thought of those confident women. I think he was trying to be a good mentor but it fucked me up, because I don’t consider myself a bitch, nor do I want to be one. It took me a long time to realize he was wrong, and that I can be a kind person and confident at the same time.
On the flipside, I was once given feedback that I’m “too direct” in emails and it came across as rude. What I realized was, it wasn’t the directness, it was the lack of friendly communication around it. You can say “I know the answer to your problem, do this thing” as long as you add in “Hi so-and-so, thanks for the great question! Here’s my brief reasoning, so I recommend you do this thing.” One is “bossy”, the other is friendly and acknowledges the recipient is an equal asking for advice, instead of an underling who should obey you because you said so.