It's overwhelming an opponent with too many arguments to respond to all of them accurately, regardless of the validity of the arguments.

Actual debate would allow your opponents to address each point before bringing in additional points.

Note that it's not about providing many sources, or many agreeing examples, but many different supporting arguments or points, "facts" etc.

Frequently Ancient Aliens uses this, a single story about one theory might have dozens of examples or narrated questions that are never really individually supported or even acknowledged again. Ex:"could it be that Stonehenge was the work of aliens? Are druids related to aliens? Is the loch Ness monster an alien experiment gone wrong?" All in a rapid succession without further discussion.