6. Filter by KC and sort your list. Like some of the other filters you can input a minimum and maximum amount in the KC column and sort by that. Some people prefer to sort ascendingly to do their analysis from the easiest to the toughest keywords. For a new site try to find keywords with KC equal or under 20 or 30. Despite the super helpful KC score, you should further analyze your best looking keywords individually to be sure they are good to go. So click on them to check your top-10 competitor sites and pages.
Answer: Google Keyword Planner was created to find keywords for Google ads. It will likely not produce very good keyword suggestions for SEO or content marketing purposes. Google Keyword Planner often hides good long tail keywords. To find long tail keywords for SEO, you can use Keyword Planner alternatives such as Google Trends, Google Suggest or Keyword Tool.
As for the history of the company, as I explained, I created Long Tail Pro back in 2011. At the time, I was creating tons of niche sites and was doing alot of keyword research and content creation. I was trying to figure out what types of keywords would rank quickly in the search engines, specifically Google, and I was frustrated with the other keyword research tools (in particular Market Samurai) out there.