How to drive a user crazy?

… very simple:

Send a letter with a temporary password with a length of 10 to 20 characters. Do not make the password readable in any way! Add a space after the password so that common mail agents will select this space when you click on a word.
Allow space to be entered in the password field on your site. Do not try to cut the spaces at the beginning or end of the password automatically!

Love users - provided.

Source: https://habr.com/ru/post/37299/