First of you immediately accept that the an individual is being manipulated by another individual. By default right now your body is being manipulated by my words, by my actions, by my intuition also you are being manipulated by the electric lights, computer, air you breath and your surroundings without even noticing it.
Yes, I would agree with that. Humans are basically complex machines, and all machines follow an "Input -> Function -> Output" system. The function just happens to be extremely complex in humans, and may or may not include "free will".
Your brain is being manipulated by energy to create thought introduce reasoning and access past knowledge and your own intention. Where did all these things come from. This is happening inside you without any of us doing anything at all.
Like I said above, humans are basically complex machines. Thoughts, intentions, memory, etc. are all just internal states of that machine. External input modifies that state and produces some output, like right now your input of this message is producing the output of my fingers pressing certain keys to type a return message. Even trying to rebel against that idea and exert "free will" is itself just a result of the function and the input you receive. Some people try to use QM as "proof" of free will, but in the end a random function is still a function, and no more choice is included than in a fixed function. (That doesn't really bother me though. It still feels like free will from the inside, even if it's just an illusion, and I enjoy life regardless)
Someone skilled in manipulation, and who knows how their target usually reacts, can influence that person to do things they want, although with such a complex internal system, and the possibility of randomness, the results are hardly ever exactly what you wanted, at least without extensive conditioning.
See even if you are the manipulator and your intention is to do X Y and Z the fact is that X Y and Z will happen. Now your own intention may be to debunk and or profit of a situation but what if the situation X Y and Z is manipulating you in thinking you are doing supposed action out of free will.
Minded thought has external sources almost like wireless internet. But it is so seamless so direct that you the transition of introduced thought and your own cannot be detected by the brain process. Examples are "a murderer having a moment of pity or even save a life" This we see in prison among other places.
In short it is the actions we do that goes against our character and yet it is a part of us. So in closing statement is even the manipulator can be manipulated by a situation. How will we define this? I have no idea and yet the proof is in hospitals, prisons and recovery stories. You cannot just blindly assume all of it is false that is simply not scientific.
The situation
always manipulates you, and you manipulate the situation. It's one big feedback loop. Maybe there is an external force (a.k.a. a ghost) adding its own input into the situation, maybe there isn't, but that external force isn't necessarily needed for a ouija board's pointer to move.
As far as what I assume you're describing as unintentional telepathy goes, I would disagree that one person's mind can directly affect another. Things like subtle facial expressions, body language, etc. might, but there are no verified instances of it happening without one of these indirect routes available. (eg. from seperate soundproofed rooms. People have tried, but the results are always statistically insignificant)
As a last side note, before you can disproof something you need to study it. You can't just log on to the net copy and paste findings and say "there is my proof" where is your findings your experiments your input?
You cannot just deny something without doing the leg work. Imagine how much the scientific community would have lots if they simply said "nah someone said this does not exist why study it further"
think about that.
I don't have to personally experiment with something for it to be disproven. For example, plenty of observations by scientists have disproven geocentrism. I don't need to build a giant telescope to observe the planets myself for geocentrism to be wrong. It's wrong because that's how reality works.
And FYI the scientific community
does do that. Biologists do not seek to prove physicists wrong or right, and physicists do not seek to prove psychologists wrong or right. (Excepting the occasional time when different fields cross over, of course)
I don't have the necessary training, equipment or education to do in-depth research into most of these kinds of things, and to be honest, neither do most of the people who argue on this forum. We all have our specializations, but for the most part, we know as much as the next guy.
For example, my specialization is computers, and to a more limited extent (I'm still learning) the nature of consciousness and intelligence, and how to combine the two fields. (In other words, I study AI) I know enough about physics and science in general to hold my own in an argument, but I don't have the tools to actually go out and make discoveries in those fields myself.