Consider the following question on ServerFault:

http://serverfault.com/questions/45734/the-coolest-server-names

Linked questions:

Note that there's only two listed. However, querying:

http://api.serverfault.com/1.1/questions/45734/linked

Yields:

{
  "total": 32,
  "page": 1,
  "pagesize": 30,
  "questions": [
  ...

Where did all of the extra linked questions come from?