For better or worse, Suckless's problem isn't with code bloat so much as code complexity. More features mean more code to debug. Better algorithms can also mean

For better or worse, Suckless's problem isn't with code bloat so much as code complexity. More features mean more code to debug. Better algorithms can also mean more code to debug. If you constrain your design scope, you can write vastly simpler programs that are more stable and easier to comprehend. It's the same rationale that leads one to use a pen and paper rather than a note taking app.