Absent a time machine, telling others how to avoid my mistakes is the best I can do.
Think that web form has got your number? If you used input type="number", you may be surprised to find that it doesn't.
Learn how developers, technologists, and forward thinking organizations are adapting to the new normal.
The more open a system is to new contributors, the more chance that an accidental meeting will benefit everyone involved.
Readable code is great, but not all code will be immediately readable. That's when you get your interrogation tools.