A metric previously shown on user cards on posts which indicated the percentage of questions for which the user has accepted an answer.

A metric previously shown on user cards on posts which indicated the percentage of questions for which the user has accepted an answer.

Accept rate was removed as a visible metric in January 2013 as per the following feature request:

Let's stop displaying a user's accept rate

We're still keeping track of it on the backend for various things, but the negative behavior its display encourages outweighs its benefits.