Within two or three days of the announcement the TOTM should be in the filters of all the regular users. If new people joining the NG reply to the twit, the contest should be explained to them, and they should be encouraged to join the fun. If the twit tries to sneak back in with a new alias the members of the Beaner will declare him to be an impostor, and everyone will plonk the new alias. The Beaner may examine headers, compare styles, or just guess, being careful not to err on the side of caution. While this creates the possibility of an innocent twit being accidentally plonked, it should be noted that we don't care.
Participation is voluntary.
If a regular user does not comply, one gentle reminder is recommended. If they persist, they are to be left alone, although other members of the NG might make the individual decision to filter them. It is recommended that the position of Beaner be held for no longer than two or three months, then passed to another trusted member of the group. This keeps things honest and spreads the fun around a bit. That's it - easy, simple, and a lot of fun at the expense of people lower on the food chain than Jerry Springer's guests.