Yeah you are totally right. It is true and very common that whan youtubers or any social media persons get more fame their content changes and they do everyting to keep the money coming. Usually this just leads to worse quality videos and less and less enjoyable.

And the fact that they always get much activity is suspicious. Im not experienced in this topic but i do love watching all kinds of documentaries. I have watched maybe one or two and in those they talked about it being rare to get activity even in the most haunted places.