Polymer

Raised as a usability problem by 18 people on Hacker News over 11 years (2013–2023), in 15 threads.

People raised many different problems with Polymer, 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 19 complaints

Poor developer experience and weak accessibility support for web components2023-03-09
Templates are untyped text, so editors and build tools can't validate or highlight them2019-04-12
Third-party components can't match site design without CSS variables, forcing overrides or forks2019-04-12
Documentation is bad and deprecated features are hard to identify2018-01-21
Hybrid mode and mixed V1/V2 examples leave developers confused, forcing migration-guide translation2017-09-04
Installing Polymer requires a cumbersome chain of npm and bower commands2017-09-04
Shadow DOM makes simple styling tasks very difficult, unlike plain CSS2017-08-19
Menu behaves like a list with a selected item, which cannot be reselected2016-12-12
Stack traces are opaque and debugging tools are lacking, making debugging a nightmare2016-12-12
Page takes about 5 seconds to load on Android Chrome, then animations lag2016-07-05
Google components needed forking and editing to work across browsers2016-07-05
When Polymer breaks, developers waste a lot of time finding out why2016-05-08
Official demo site feels slow and unresponsive2016-05-08
Hard to style modal content; overriding component styles is problematic2015-07-07
Clicks often need repeating and pages have noticeable delay before responding2015-05-28
The elements section is completely unusable on mobile2015-05-28
Demo is maddening to use in Firefox mobile2014-07-18
Home page is slow to load for the commenter on Chrome 352014-07-01
Components are impossible to style and debugging them is extremely painful2013-05-17