And while their attitude could (of course) change in the future, so far Mojang has only used trademark law in a single case: against a fellow selling a minecraft ripoff as "Minecraft" in the AppStore (which is about as clear-cut as you can be for trademark infringement). Not even FortressCraft[0], a blatant ripoff of the game using a very similar name structure and reusing half the trademark, has triggered any giving of fuck from Mojang (as far as I know, I might be wrong) although it has drawn the ire of the community.
[0] http://www.youtube.com/watch?v=bHdWswvezds&feature=mfu_i...
You clearly don't understand the concept of "trademark". It isn't going to prevent you from having a rock-and-roll band named "Scrolls." Or writing a book called "Scrolls." Or doing a movie called "Scrolls" (provided it isn't based on Notch's game.)
Getting a trademark for "Scrolls" isn't even going to prevent you from making a computer game with the word "Scrolls" in it.
Notch is trying to own the word "scrolls" in all media. This has implications not just for that single company, but every gaming company that ever wants to use the word "scrolls".
To me, that's scummy behaviour. People should not be able to trademark single words across all forms of media. It does not matter if they made minecraft or not, they do not deserve to own the word 'scrolls'. It's an english word, it belongs to all of us.