It is my understanding that pjeby's comment was not specifically about sex, but about conditioning consent upon correct intentions... the sex example was simply an easy example to give where it is clear that deliberate concealment of bad-intention causes lots of nasty things.
My feeling was the fact that Lumifer then engaged with the sex-example, rather than what pjeby was actually trying to convey about informed consent, meant that he was evading the intent of the comment.
and the side-track we've gone down about whether I actually think that lumifer buys sex is likewise irrelevant to the original point.
personally - I think that the difference between personal and commercial transactions (from the point of view of whether intentions matter to them), is in practice fairly small.
You make a contract - whether physical or verbal, whether backed by the government, or backed by your future goodwill and status. There is an exchange - whether or fiat-currency or expectations of future return in kind, or just more goodwill. If somebody later finds out that the intentions were lies... people try to get recompense - whether by taking the person to court, or by shunning them in future, or telling all their friends that they lie for self-gain.
The fact that commercial vs personal exchanges are held to be separate magisteria is, I think, the point here - and while I agree there are differences... the idea of informed consent is important in both.
I was going to wait to post this for reasons, but realized that was pretty dumb when the difference of a few weeks could literally save people hundreds, if not thousands of collective dollars.
If you fly regularly (or at all), you may already know about this method of saving money. The method is quite simple: instead of buying a round-trip ticket from the airline or reseller, you hunt down much cheaper one-way flights with layovers at your destination and/or your point of origin. Skiplagged is a service that will do this automatically for you, and has been in the news recently because the creator was sued by United Airlines and Orbitz. While Skiplagged will allow you to click-through to purchase the one-way ticket to your destination, they have broken or disabled the functionality of the redirect to the one-way ticket back (possibly in order to raise more funds for their legal defense). However, finding the return flight manually is fairly easy as the provide all the information to filter for it on other websites (time, airline, etc). I personally have benefited from this - I am flying to Texas from Southern California soon, and instead of a round-trip ticket which would cost me about $450, I spent ~$180 on two one-way tickets (with the return flight being the "layover" at my point-of-origin). These are, perhaps, larger than usual savings; I think 20-25% is more common, but even then it's a fairly significant amount of money.
Relevant warnings by gwillen:
Additionally, you should do all of your airline/hotel/etc shopping using whatever private browsing mode your web browser has. This will often let you purchase the exact same product for a cheaper price.
That is all.