Explicit approval voting
Wikimedia and Wikipedia elections are held using a rated voting system in which voters choose Support, Oppose, or Neutral, for each candidate. The winner is the candidate with the highest support percentage: the highest proportion of Support votes out of combined Support and Oppose votes = .
This is mathematically equivalent to 2-level Score voting with averaging, though the abstain votes are explicit rather than implicit, and the levels are essentially (−1, +1) rather than (0, 1), so they are affected by the psychological consequences of negative voting.
The Wikimedia Foundation has used this method for Board of Trustees and Funds Dissemination Committee elections in 2013, 2015, and 2017, after previously using Approval voting and Schulze method.