What's the point of those weird fonts such as wingdings

Well if you’re going to use Unicode, it’s replaced Wingdings. Wingdings was for before Unicode.

Yes. The four “hearts,clubs,spades,diamonds” characters are not an alternate font, they are in the PC specific use of the “extended ASCII” range from 128 - 255.

Is “emoji” a standard name or is it part of the japanifatuation fad of tentacle/kiddie porn?