Sass

Raised as a usability problem by 6 people on Hacker News over 10 years (2013–2022), in 6 threads.

People raised many different problems with Sass, but no single problem has yet been raised by 3 people in 3 different months and threads.

Unreviewed issues were grouped by machine: Claude Haiku labelled each comment as a usability complaint, named what it's about and summed up the problem in a line, and a small model grouped similar problems. Nobody has checked them by hand. Expect mistakes.

The newest 6 complaints

Sass custom syntax clashes with CSS, causing breakages when using newer CSS features2022-03-15
@extends doesn't behave as expected for programmers from traditional languages2021-05-11
Syntax is ambiguous, with confusing, bug-prone differences in variables, imports and math2015-07-03
Sass takes 10-20 seconds to recompile after each save2014-01-21
Every small style change needs a recompile that can take 30+ seconds2013-11-26
Tooling integration is painful, and merging compiled output across branches causes lots of friction2013-11-13