Yeah, by removing those "hidden fonts" reduced the font folder size by 250mb. Probably insignificant these days.
But as I say, when scrolling through fonts in Photoshop for Wingdings, my poor 'ickle finger begins to ache!!
Segoe is system, as is micross.ttf or Microsoft Sans Serif.
That's why the script removes them non-latin fonts to the root of C:\. Any problems they are still at hand to be restored. First time I ran t I waited a couple of weeks before deleting, but now I know it's OK (for my En-UK PC) I delete straight away.
There's also one to remove all the unused (by me) language folders (I'm always in the system32 folder!!). Plus others.