As this is such a pivotal topic and such helpful responses, maybe one of the admins could merge/copy with the politeness thread?
I'd rather not. This is mainly because this thread is about a problem an individual person had, and making personalized threads part of the stickies as soon as they fit with the general topic would turn the stickies into huge collections of posts, so it would be very hard to keep an overview. And although this thread deals with politeness in some parts, I think that's just one part of it, and many posts made here would be off-topic in the politeness-sticky.
But when this thread was started, I added a link to it into the 'Links to threads' topic, so it should be very easy to find anyway.