Storage of blueprints by friends

Embark, please make blueprints soulbound. The easiest way to do this is to assign the blueprint that was in the stash to the player. If the player takes such a blueprint out, it can only be sold.

Currently, there are a huge number of blueprints in the game, and everyone has that one friend who doesn't reset. It spoils the fun, and personally, I don't want to have the option to transfer blueprints. How about you?