As per some guides, we need to create web 2.0s and target relevant long tail KWs that have search around 10 per month so that they can rank easily but nobody else is targeting. But when I run such KWs in google, the top 10 results are of sites with 30+PA. Is such KW a wrong choice for tier 1 web2.0s? Though none of the ranking pages have the entire-keyword in their title or page. For example: my primary long tail KW is "how to become a #####". What could be some long tail KWs for tier web2.0s?