List of Best and Worst practices for designing a high traffic website

List of Best and Worst practices for designing a high traffic website
Keywords in title tag + 3
Keyword density in document text + 3
Keywords in URL + 3
Keywords in anchor text + 3
Keywords in headings (h1, h2, etc. tags) + 3

Keywords in the beginning of a document + 2
Keywords in tags + 2

Keywords in metatags + 1
Keyword phrases + 1
Keyword proximity + 1
Keyword stemming + 1
Secondary keywords + 1
Synonyms + 1

Keyword Mistypes 0

Keyword dilution - 2

Keyword stuffing - 3