Searching for "Antarctica" on YouTube returns conspiracy videos
twitter.com
twitter.com
I gave up and went to Wikipedia.
Are you suggesting Youtube serves content based on IP as well as account and cookies?
Lots of alternate viewpoints represented in those search results.
It may well be the worlds largest stultification factory invented right after Facebook and religions. That's not a conspiracy, just the result of human nature and incentives.
It can also be used for tremendous enlightenment, if handled carefully.
Consequently Antarctica is ripe for people saying silly things without having a clue about what is really happening there. Add to the mix satellite imagery. It is very easy to misread satellite imagery. Even basic things such as clouds take a while to understand. Imagery of Antarctica is much like looking at clouds from the ground when bored (or on drugs), the pattern matching algorithms of the brain can see anything including pictures of Jesus Christ on a piece of toast in a cloud.
Then there is the matter of proving that things said to exist don't exist. If some conspiracy theory claims that the U.S. government has all these pipes and facilities laid out deep under the Antarctic ice and 'here is the satellite imagery to prove it' then you are in 'god does not exist/homeopathy' belief territory. Believers won't accept that their beliefs are bullshit. That is the problem with beliefs instead of facts.