As it appears on the website: meritocracy
Meritocracy is a form of government where advancements are made on the basis of merits. These merits can be test scores, degrees, achievements and so forth.
The word meritocracy is not exclusively used for government structures, however. Websites can also claim to be a meritocracy. In that case, it means that higher positions, such as an administrator or moderator, can be earned on the basis of merits. For instance, a user who contributes a lot to a site in a professional manner might become a moderator on the basis of these contributions. The idea of a meritocracy is that talent and hard work do not go unnoticed.