Your comments

Reopened due to new request of the same function

Thanks for the idea Chris! It's nice that it could be implemented quickly, but in general I'd like to avoid such hidden features and do things properly. CN already has a ton of hidden features and it doesn't help in gaining popularity;)

Strange, doesn't happen to me (at least with the mentioned above Wikipedia API article). BkSp works like it should.

May I ask why you use such a strange way to create linked notes, instead of pressing Alt+Shift+N?