DISCUSSIONS on “Rules for online games in HoMM3 and formulas for calculating player rating.”

This isn't written anywhere, so you can choose not to provide it, in my opinion. You can always say you forgot and deleted the password file.

If a person says they forgot the password and deleted the password file, then they should be given a loss in the game, and it should be noted that this person is most likely dishonest.
And if you think that everyone has the right not to provide a password here, then you are supporting dishonest players.

Added 5 minutes later

On most maps, with proper blue play, it won't be vulnerable to a red rush. On maps where this is impossible (for example, the CM map), the ban on red rush should remain.

Your statement is completely incorrect, as on the contrary, on all maps, there is a situation where red can do a red rush and win, and blue will not be able to counter it.