The fact that someone is subjecting their view to a test and the possibility of being disproved does give us new information, like finding out that someone has bet on their view in a prediction market. The person has to have enough familiarity with scientific habits of thought (generally a positive sign for intelligence and rationality) to come up with the idea, and people are much more cautious about advancing theses where they fear being quickly proven wrong.
The fact that someone is subjecting their view to a test and the possibility of being disproved does give us new information, like finding out that someone has bet on their view in a prediction market. The person has to have enough familiarity with scientific habits of thought (generally a positive sign for intelligence and rationality) to come up with the idea, and people are much more cautious about advancing theses where they fear being quickly proven wrong.