T-SQL

Raised as a usability problem by 4 people on Hacker News over 3 years (2015–2017), in 3 threads.

People raised many different problems with T-SQL, 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

Dropping a schema needs a tedious, error-prone drop-all script around foreign keys2017-05-10
Autocompletion fails on SELECT and error messages are unhelpfully terse2016-05-31
Semicolons are only sometimes required, so the author must always prefix CTEs with ;WITH2015-04-30
Turning rows into one JSON object per customer needs awkward FOR XML PATH hackery2015-04-30