Stack Overflow homework questions and deleting them

Well I answered a “homework” question today, trying to help someone “learn”, and as the question evolved recommended follow-up question be asked in another question, answer those also, looked latter points lost, question gone?? following my browser history to the prior question to find it gone? Mention this on the new question and it also gets deleted.

https://stackoverflow.com/questions/69875135/sql-sum-of-multiple-records-on-same-date

The original question
The original question

https://i.stack.imgur.com/qBQR6.png

Attached data
Attached data

https://stackoverflow.com/questions/69877332/fill-in-missing-dates-in-table-sql

The second question
The second question

Ok, so cloud_user / cloudaemon you knew you were meant to not be asking on StackOverflow, then don’t!