@Eggie Those aren’t real scientists, they are only people who are trying to use more objective means to find evidence. Those people are not part of the scientific community, they are part of the paranormal investigation community. We’re not talking about people with PHDs in physics.
Take for example the show Ghost Hunters, which involves no one with any scientific background wondering around in the dark, getting scared, and pointing out minute oddities seen in dark rooms where no one really has much idea of all the different natural processes that might be occurring.
Throughout the whole thing, both you and the people on the documentary expect to see paranormal activity, so almost anything that is hard to explain is automatically ruled as such. And when it comes down to it, they have to deliver results for ratings and money.
Do you ever get any real evidence out of any of that stuff? Not really. Nearly everything found can be attributed to physics or psychological factors. There just isn’t any substantial evidence towards the paranormal.