Right now it's a multistep-process to manually link two notes with each other. Coping the note link, inserting it in the other on and if necessary copy the link of the other note to link back at the initial note.
With nearly 5,000 notes in Evernote it get's more and more important to build networks, otherwise a huge amount of notes never gets looked at.
Maybe at the bottom of each note (where the 'context' section is) you could place a little search bar to enter other note (titles) to connect them with each other.
This way it would be more easier to jump between related notes and manually add such connections instead of relying on the 'context' feature.