NES

Raised as a usability problem by 4 people on Hacker News over 8 years (2013–2020), in 4 threads.

People raised many different problems with NES, 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

Consistent 0.5-1 second delay between button presses and game response2020-12-30
Non-tactile onscreen buttons make the platformer awkward to control on touchscreens2017-04-25
Reset button is hard to reach, forcing users to lean over to switch games2016-11-12
Forced fiddly cartridge re-seating and blowing steps make games hard to start2013-05-17