The point is that this was an informative post about something I don't like. So why would I downvote it?
Think of it like this. If there was a massive tsunami somewhere and somebody posted a link to a solid news report on it, up voting it is saying "thanks for the news" NOT "I am pro-tsunami".
Don't know from personal experience, but I've heard that since real teeth have nerves in them, you can feel more with them than with implants/dentures. Maybe it's not as noticable if it's only one or two teeth. But for folks who have lost all of them maybe this is a better alternative to dentures?