Massive assumption and completely wrong. People who strip out the metadata do it for many and varied reasons, and I've never (through many similar discussions) heard anyone say they did it 'to not help others'.
I did say it was my opinion, doesn't make me right but doesn't make it any less valid to me.
How can knowing more not be helpful?
If you know the wrong things, or you gain some knowledge without understanding and it leads you to the wrong conclusion, I could go on, again lots of reasons.
Well the unedited data can't be 'wrong' as that was how the image was captured, it has to be right. At that point it's how someone interprets that data. For example the percentage of people who will think wow if i know that was shot at f4, iso 200, 1/500 and with a 5DIII then i'll get that exact shot if i replicate that information are
very small. But that same data may help someone put the image / information into context.
I understand how this might sound, but I'm saying it anyway:
Put 20 people who've been shooting for ten years and know what they're doing in a room and ask them how important 'settings' are, you'll get a unanimous 'completely unimportant'.
Do the same with 20 newbies and you'll get the opposite answer.
I've been shooting for 25 years in one form or another. I would never say as a blanket statement settings don't matter, they do. The key is they are a piece of a possibly very complex puzzle but nevertheless still matter. It's important i have the right shutter speed, aperture, iso etc. to make the basic core of an image, lighting, models, posing the scene etc. then fill in the rest. If you have a small piece of the image puzzle you may be able to gain a better understanding how an image was constructed.
Not only do people not know what they don't know, it's almost impossible for them to work out what information (of all the stuff out there) is actually important or even correct.
I'm very open minded and present the core information as captured and let someone do with that what they will. Who am i to say, hey world you don't know what you're doing so seeing my shutter speed won't benefit you so your not having it. Very presumptuous.
I can't find and have never seen or listened to a good argument why basic metadata is removed, never. It does no harm to 99% of the population who are even interested in looking at it. It's like a piece of knowledge someone has deemed you're not worthy of having because you'll not understand it fully (according to them).