Language links are commented out to stop bots from consistently adding the same link, while also preventing it to appear under "In other languages" in the sidebar.

This is essentially an inproper way for those who only want to prevent the bots from re-adding a link on one page, while not caring about pages with the same content in other languages. This method is mentioned in the following section on an en.wikipedia help page:


----- Original Message -----


Sent: 06/25/12 02:39 PM

To: Discussion list for the Wikidata project.

Subject: Re: [Wikidata-l] Impact of Wikidata phase I

I am surprised by the amount of commented out language links -- there 
seem to be plenty of them, and I do not fully understand why.