No. If they don't know the rules, they can type motd or !rules or check on the forums or the admin present can tell them or the players in the server can tell them as well. Lest they get banned, votebanned, kicked, muted, etc.

The rules are present and available, all spamming chat and console does is desensitize the players that see it all the time and put another programmed burden on the server at the beginning of EVERY round while it's doing the most work as far as rendering goes anyway. Brilliant.

TL;DR If a player doesn't know the rules, tell them. At the very least tell them where to find them, unnecessary programming does not have to be done because you don't feel like doing your duty.