When we use the shortcut to add stickies, its quite easy to start adding stickies that extend outside the viewport, forcing a user to leave their keyboard and reset the view.
While there are many possible solutions to this, one example: If the viewport were to move with the user then the user could stay in flow.
There may be value in having stickies wrap to a lower line after a certain number and create a grid, so as to avoid the user having to deal with one long ornery line of random ideas (Perhaps this could be toggled as a mode or setting).