In Numbers^x, Indirect questions^x, Clauses^x

I know 'would' carries many meanings. My problem is sometimes I find it difficult to tell which meaning the speaker uses. I think I understand its hypothetical usage, and in some contexts, its politeness usage. Below is a post that has several woulds I have trouble interpreting. I also...

Yes. I thought maybe that's what you were referring to. would in an if clause is possible when the would or the entire if-clause is part of a formula of politeness. if you would be so kind is a typical example of if with would in a "politeness phrase". This formula is equivalent to please ....

Thank you very much. As for number 7: I was thinking of sentences like "If you will pardon me for saying so, it's... (it'll be...)" I suppose that "will" is not the auxiliary verb here, but means "are willing to, want to" or something like that; so, it doesn't seem to be a true exception....