In other words, you've done everything in your power to build a community but the community isn't coming. It's at times such as these that you have to remind yourself of a few things.
1. If you created a site with the expectation of building a community, the people won't arrive immediately.
It takes weeks, months, and perhaps one or two years to build a community. Even though you've done your best to stand out from the crowd, people are slow to discover your particular site because the internet is a huge place. Even though many people will browse your site and will read what little posts that you have, some people take longer than others to actually join a site. And once they join, some people will contribute; others will never contribute. The phrase "long time reader, first time poster" comes to mind. As a concrete example, consider the "popular" forums. There are some forums that have thousands of members, and thousands of posts. However, not all of their members actively post -- only a small percentage of them do. How many times have to seen a forum that has 100 members with 1,000,000 posts?
2. Your site should reflect something that you, as the administrator, is genuinely interested in.
Forums, blogs, and static websites have one thing in common: they reflect what their creator is interested in. And as the creator of your site, the site's content reflects you -- and that should be good enough. If others are attracted to what your site is about, then a community starts to build around the administrator's interests. If people "don't care," then that should not affect the administrator's commitment to their dream -- their baby. In other words, new administrators should believe in their own site first and foremost, and it shouldn't matter (there should be no expectation) whether or not other people are interested in the same thing. That's what makes the interent an awesome place -- there's a site dedicated to any topic that you can imagine. If people are interested, then they will find you eventually (See #1). Other people's interpretation of the administrator's passion should not deter the administrator's passion. The administrator should be passionate about their site in the face of discouragement.