Well Grinity says "Gifted is as gifted does"

Label it however you want as long as you support your kid in it.
My kids have done this and I've never seen them get OCD about it. When they are done, they move on to something else. They have had periods where they weren't fascinated with anything in particular.

I knew a mom who seemed a little Gifted Denial. Personally, her son looked really GT to me, but it's none of my business. She had told me he was obsessed with Pokemon cards or something along those lines. Making intricate binders, creating extravagant story lines with the characters etc. She said she was very concerned and solved the "problem" by taking all the stuff away from him.
I felt bad for the little guy, but that's the mom's decision to make.
DD8 has made comments before that one of her friend's mom doesn't understand her. This is a particularly bright little girl. I asked her if that's what her friend told her. She said no, she's just decided that from observing her. DD8 then told me that I get her, which is obviously good!
Phew...