I can't help myself: suckless sucks. Lots of arbitrary limitations for the code, need to recompile instead of configuration, optimizing for a wrong usage scenario.
I think the suckless project has correctly identified that a lot of software sucks, but their attempts to make it "suck less" are focusing on the wrong points. A lot of mainstream software is grossly inefficient, bloated and resource-intensive, and that's not necessarily because they're featureful. It's certainly possible to write software that is both featureful and efficient, but suckless aggressively cuts features…
It's the same rationale that leads one to use a pen and paper rather than a note taking app.