I am honestly baffled at the amount of people calling for a "light" type. Why? What's so great about this "light" type to cause so many people to jump on its bandwagon? Because it's an "opposite" to dark-types? Psychics fill that role quite well as it is, as shown with Cresselia/Darkrai, Espeon/Umbreon. Also, as mentioned before, Dark-type is "Evil" in Japan, so they wouldn't work as opposites. And thirdly, types don't all need opposites. Most of the types don't.
I myself like the idea of a "Digital-type". I think it opens up a whole new world of attacks and pokemon ideas. I invent new fakemon as a hobby, and I have 15 Digital-types at last count, plus the Porygon family, showing that there are a decent amount of pokemon to be created with this typing.
Super-effective: Dragon
- I just think that Dragon should have another weakness. I think the reason that Gamefreak don't introduce more interesting Dragon/??? types (No Fire/Dragons, despite traditional dragons being firebreathers, only two Water/Dragons, one a legendary, etc.) is because they don't want overpowered Dragon-types. Every single fully-evolved, non-legendary Dragon-type except Kingdra has a 4x weakness to Ice because of this. Give the Dragons another weakness, and we can enjoy more diverse typings.
Not very effective: Poison, Grass
- This is to buff up the underpowered poison-type, and the Grass-type's poor defences.
Weak to: Poison, Bug
- Again, buffing up some underpowered types. The logic behind this is poison=virus, and computers programs often get bugs. Shoddy logic, I know, but that goes for plenty of type match-ups.
Resist: Electric
- For no other reason other than it makes sense. There aren't really any overpowered types, leaving me struggling to think of resistances.