How does that affect my relationship with my wife? We both have been able to be very honest with each other, and we have a relationship built strongly on trust and honesty. I hope I never break that because it would be a betrayal. It is really about the tone used to express the thought if the thought is important enough to express in the first place.
I despise the whole concept of "white lies". I despise people who dare to manipulate me, to condescendingly see after my own good or feelings by bald-face lying to me about something. Be honest or say nothing, but do not dare tell me excuses that are obvious lies, "socially acceptable". According to whom? Where do you draw the line between "white" and "black" lies? I do find it insulting, and I often do not mind calling people out on it; sure, things get uncomfortable, but they are the ones spouting deceit.
Perhaps it boils down to the notion that what somebody expresses is a measure of their integrity and honor. Somewhere I read a quote along the lines of... You can judge a man by two things: what he wants and what he is willing to do to get it.
Taking the title of the article as an example to work with: As a woman who used to be quite plump, I found that some men liked me like that and had pleasant ways of remarking on the fact that I had generous curves. Observing honestly that a person is not thin does not automatically require one to agree that simply being fat is inherently something horrible and in desperate need of remedying, worthy of making one a social outcast who should promptly pursue personal torture to get in line with the social norms and expectations that "thin is in".
I grant that people may believe this, but I disagree that it is true. If you ask me now my social security number, and I silently refuse to answer, or I ignore you, am I a liar? Of course not. I am not submitting a "white lie"; I am saying nothing.
If my silence is crafted to deceive you, that is another story entirely. There is a difference between "silence intended to deceive" and "silence intended to not answer". Usually there are other cues to aid in the deception, too, such that the response is not entirely silent (wagging eyebrows or whatever).
I'll be honest with you, I have a handful of close friends and a couple of hundred acquaintances who will answer my calls if I ask them to come out for coffee. I really don't care much about what others think of me. I wouldn't say I am an arsehole but I have been one at least once. If people really want to associate with me, then I'll be pretty frank about who I am.
Honesty doesn't mean being an arsehole, but if you are an arsehole you probably should be honest about it. Some people are truly terrible people, I've met quite a few. I appreciate their honesty but I know for everyone who reveals such details many stay in hiding. It's the arseholes who stay hidden that are the bigger problems, like the ones who will read this comment or prowl online communities looking for leverage against us.
OK, but one might distinguish honesty and gloating, and suggest reformation as another alternative. Some people do change.
In some cultures (e.g. some European countries) people are very frank with each other, and that sometimes helps to clear up miscommunications more quickly.
What I dislike is people who praise themselves a lot. It might be true, but I was brought up to be modest, and I feel at a disadvantage when I am with people who toot their own horn a lot. And it annoys me.
Modesty, as you mention, is also a great example. There's nothing wrong with mentioning the things you've accomplished when it's relevant but it's important to know the time and place for it. You might talk about your skills and successes in a job interview for instance as it's the proper time for it but if you go on like that when you're with your friends you'll probably get tiresome.