Why have people started to call internet people "nerdy"?

From my understanding, being nerdy means that you are academically intelligent (in STEM fields typically) and somewhat detailed in your responses. These people (in the past) tended to do things like play chess or watch anime etc..

Now I see people that aren't particularly STEM smart but watch anime and play video games calling themselves nerds. Why have people these people hijacked the word? Is this a coping mechanism in the same way that fat women hijacked the word "curvy"? (curvy used to describe something akin to the hourglass figure, which is essentially describing the bone structure [and musculature] associated with a slim woman.)

It is a coping mechanism
They are actually referring to the smart people you described first
The newer generations confused the typical traits seen to be the actual meaning as opposed to the original meaning
Other
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Why have people started to call internet people "nerdy"?
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