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There's a question down at EL&U about the correct English word for a child (for example) allowed to play by relaxed rules when competing against adults (for example) with a natural advantage at this activity. (The question's author provides some Spanish words for this privileged weaker player.) This question is protected to prevent "thanks!", "me too!", or spam answers by new users. To answer it, you must have earned at least 10 reputation on this site (the association bonus does not count).
What's the purpose of this protection? I know -- to prevent "thanks!" etc. But when is protection advisable? It seems to me that I've usually encountered this after a series of very good answers. But at the moment, I think, there's only one answer, and it has a score of zero.