Your comments

 Hmmmm....

First: I make a suggestion, not an order.

Farther, it can be usable because it is also/already adopted in a lot of broadly accepted systems like G+, Tweater, FB, *Wiki. Ctrl+N is mostly adopted as a new document/object combination. Ctrl+Shift+L is possible, but how will it go in its process? Like typing a sentence then Ctrl+Shift+L [program activate link-add mode], typing a letter [program does ????  - Opens a dropdown with all matching note titles?; - Just makes underscore_font? with other words, what is the sequence_diagram says? :) ]. Or do you need type a word and then select it and Ctrl+Shift+L?


>1) Note text is not littered with artificial symbols => improves readability

Now...., any decoration / marking of text, makes it less readable. 

>2) Link caption can be different from link destination => great for links as part of text

Then you have any way do more then just hit Ctr+Shift+L :) 

>3) Exactly same number of keystrokes, but less possibility for ambiguity => greater typing speed

If I see point 2, I do not understand how I can do it with the same number of keystrokes.


I think we maybe have to distinguish the external links and internal links (and also maybe the link to a tag or other objects)


P.S.

Sorry for my English. I'm not a native speaker and also never learned this language at school or in any learning process.

Why do not use something like hashtag? Personally I prefer to have a # hashtag for tags and a '^' for links, for example..