Examples are usually useful (I've seen plenty of unclear and confusing examples though). However, TOO MANY WORDS is a big negative when it comes to teaching.
Certainly. Word economy matters. That's what
editors are for. (And why my posts are always seven billion words too long.)
There's a
ton of sloppy, roundabout, vague, or wasteful DMG prose at present. The editing is adequate (few to no typos/grammar errors.) It could be
much better.
Even with that aside, adding more examples
that are actually useful and effective, so long as doing so does not become cost-prohibitive, sounds like an unalloyed good to me. I genuinely don't understand how it could be harmful, so long as one remains aware that both books and reader attention are finite quantities.
Judging whether or not to add examples based on the concern that there could be
bad examples doesn't exactly do you a service. It would seem that you thus grant that good examples do in fact add value, so long as they
are in fact good. Which is what I asked for, however many pages back, and I can't imagine anyone else was asking for more examples with no regard for quality whatsoever.