Claimed UFOs sightings seem to have become less common since everyone is expected to carry a digital camera with them all the time (in their phones). Similar for Loch Ness etc.
But it's not like people don't like their outlandish theories anymore. Alas, they've become very politicised, too.
To give an example that's hopefully not too polarising: many people like to blame inflation on greed.
UFO phenomenon peaked with TV and Movies of 1950s. There is no other better explanation for UFO than influence of mass media on human minds, where some of them could not distinguish reality and what they saw on screen.
But it's not like people don't like their outlandish theories anymore. Alas, they've become very politicised, too.
To give an example that's hopefully not too polarising: many people like to blame inflation on greed.