If low quality content is overflowing?

[batman]

This responsibility solely remains at the shoulders of admin and moderator team.

People will try and do spam you if you have a good community. There are a lot of people who like to take the short cuts. But that doesn't mean that you cannot lead a good community.

Be online most at the time. Create content on your own first and encourage good members to contribute. Encourage also to report spam if they see any.