BBM

Raised as a usability problem by 4 people on Hacker News over 1 year (2013–2013), in 3 threads.

People raised many different problems with BBM, 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 4 complaints

Signup resets when switching apps, and approval email is never recognised2013-10-24
Page renders blank without JavaScript; text only visible in view source2013-10-24
Users are notified when contacts have seen or been active, a privacy-intrusive feature that pushes unwanted information2013-09-20
Options are scattered across left, right, top swipe menus and bottom bar, hard to find2013-02-06