Content is king when it comes to SEO. You can't have an SEO campaign without content; it's the fuel that makes SEO work. Do you have enough pages around a specific topic area that it would make sense to create a page describing these related pages (e.g. root page …

In short, content flagged as "thin" is not inherently bad; however, it is almost always less valuable to visitors as unique, carefully written content. You need to ask many other questions as well. I am probably doing the safest thing, as that could be seen as manipulative if I intended …