Were you aware of this Wikipedia rule?
Misuse of primary sources
Exercise caution in using primary sources. Do not use trial transcripts and other court records, or other public documents, to support assertions about a living person. Do not use public records that include personal details, such as date of birth, home value, traffic citations, vehicle registrations, and home or business addresses.
Where primary-source material has been discussed by a reliable secondary source, it may be acceptable to rely on it to augment the secondary source, subject to the restrictions of this policy, no original research, and the other sourcing policies.
What this means, in practice, apparently, is that say there was a false birthdate on an article about a living person, and you knew it was false because you had, say, a bankruptcy record for that person with the correct date. Guess what? It cannot be corrected, because that document cannot be uploaded or relied on in any way. Whereas if it were claimed on some anonymous webpage that the false date was correct, that would be acceptable as a source.
Now, of course Wikipedia should not publish a living person’s address, or the other material listed at the end of the first paragraph. And if the subject has an issue with his or her full date of birth being used, then clearly the year – but the CORRECT year – would be appropriate. But refusing to accept primary evidence when there’s a dispute about what that correct year is? That’s just crazy.
Oh, and also, if you know enough about the subject to know that the birthdate is wrong? You’re conflicted and shouldn’t correct it, anyway.
Keep that in mind any time you’re about to rely on some data in Wikipedia because you assume that if it was an outright lie somebody would’ve corrected it by now. Maybe they’ve tried.