The first or second tag, sorted by popularity, that is not in the title is prepended to the title.

In your examples:

• How do we maintain answer quality when everybody thinks they're experts? The top tag of the two on the question is content-curation with 19 questions (versus community-standard with 7), so it is added to the title

• Advantages to storing content locally vs outsourcing it to a 3rd party small-communities barely wins on this question with 20 questions, so it is added to the title.

The first or second tag, sorted by popularity, that is not in the title is prepended to the title.

In your examples:

• How do we maintain answer quality when everybody thinks they're experts? The top tag of the two on the question is content-curation with 19 questions (versus community-standard with 7), so it is added to the title

• Advantages to storing content locally vs outsourcing it to a 3rd party small-communities barely wins on this question with 20 questions, so it is added to the title.

The first or second top tag (sorted by popularity) that is not already in the title is prepended.

In your examples:

• How do we maintain answer quality when everybody thinks they're experts? The top tag of the two on the question is content-curation with 19 questions (versus community-standard with 7), so it is added to the title

• Advantages to storing content locally vs outsourcing it to a 3rd party small-communities barely wins on this question with 20 questions, so it is added to the title.

The first or second tag, sorted by popularity, that is not in the title is prepended to the title.

In your examples:

• How do we maintain answer quality when everybody thinks they're experts? The top tag of the two on the question is content-curation with 19 questions (versus community-standard with 7), so it is added to the title

• Advantages to storing content locally vs outsourcing it to a 3rd party small-communities barely wins on this question with 20 questions, so it is added to the title.