Because theres no way anyone spent more than 10 minutes fact checking and verifying the page on your neighbor's dog. And if it has your neighbor's dog it has other people's neighbor's dogs. So now every page you have to distinguish between actual curated, "trusted" content and some guy posting about his friend.
> Plus, as long as they maintain the "no original research" rule and the citation requirement, this isn't even a potential problem.
Thousands of articles are published everyday. Its not difficult to get in one. So and so got an honorable mention at the town's local pet show.
You already have to distinguish between curated and non-curated content. It's not like Wikipedia requires an editor before publishing the content, and a whole lot of pages have never been revised, or have been editing since, etc.
Why wouldn't I?
Plus, as long as they maintain the "no original research" rule and the citation requirement, this isn't even a potential problem.