I have zero proof of this so take this for the musing it is, but the Internet Archive/Wayback Machine can be used to view articles that have been taken offline (sometimes for political reasons). The IA is a very accessible way to prove that once something is on the Internet, it’s out there forever. I used it in a recent post to show an Israeli newspaper article that argued Israel had a right to not just Palestine, but Lebanon, Syria, Iraq, and other territories. It was taken off the newspaper’s website a few days later, but IA had it.

Or it very well could be another reason, including people just being assholes.