This question already has an answer here:
I was just granted the Association Bonus for a new StackExchange site, as soon as I signed into it.
The purpose was to suggest an answer for a question, and at the bottom of the question, where the answer box is found, I instead was greeted with the message:
protected by ___ 2 hours ago
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.
So, there must be another requirement beyond the 10-minimum reputation, but it is unlisted.
What is that other requirement?