The internet is full of incidents that suggest 'this event' and 'that issue' is 'Paranormal'. So when can you take a piece of evidence you have gathered and say with confidence 'Paranormal'?. You have to consider that any incident, no matter how strange it may seem at the time, that there maybe a natural reason for it. Not everything is paranormal.
When any investigation is carried out, more so when the event is a 'payment to attend', there is always a certain degree of pressure on the Event Organiser to come up with something to make the event become 'paranormal'. Over the years I have lost faith in these events as explained elsewhere on this web site. A Medium suggesting they have a 'feeling' that there is a dark entity close by, is not evidence at all, it's a simple interpretation and nothing more. Likewise with some TV Shows, they start off fine, but all of them fall prey to the most common reason of their downfall -MONEY! Yes, the root of all evil! The TV Shows at some point, due to pressures of producers or the presenters own limitations, they start to fake events using the label 'for entertainment purposes only'. Sexing something up is one thing, but lying is something very different. It does the real investigators no favours at all, it's corrupt and it's wrong. Don't fall into that same trap.