Joomla

Raised as a usability problem by 4 people on Hacker News over 9 years (2007–2015), in 6 threads.

People raised many different problems with Joomla, 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

Upgrading from Joomla 1.5 was too cumbersome, so clients skipped updates2015-05-15
Hard to use, plugins break between versions, and the URL handling hurts SEO2012-06-18
Learning curve so steep the user gets frustrated and gives up2009-10-15
Too many bundled features get in users' way, so developers spend most of their time removing them2008-05-09
Joomla makes adding new content or applications harder, and its native user interfaces are unusable2007-09-29
Managing all site content through Joomla is painful and cumbersome to use2007-08-31