Currently, on none of a IPF is shown who maintain it, nor how to contact him (or her), aspecially that they also doesn’t provide any option to update outdated articles
Welcome @mcgiwer to the IPFS community!
In IPFS content is identified by its fingerprint (hash), and thus CIDs (IPFS Content IDentifier) cannot be updated, since updating the content of a file also changes the content identifier. If you need an identifier for mutable content, I suggest you look into IPNS.
There may be multiple providers for the same content. You can find the Peer ID of the providers with Kubo using the command ipfs routing findprovs <key>. From the Peer ID, you can then find the IP address of the content providers, but I am afraid you won’t find an email or an easy way to contact the providers.
What are you trying to achieve?
There is a wikipedia version under the address of en.wikipedia-on-ipfs.org.
The problem is that due leak of informations who maintains it, there is no way to get it’s content to become updated (aspecially if it’s outdated or inaccurate)
I am not familiar with this project, but you can find more information at GitHub - ipfs/distributed-wikipedia-mirror: Putting Wikipedia Snapshots on IPFS.