To customize your experience on the site, here's how you can hide content you're not interested in. If you come across spam, please tell the community team.
Block a member from following your profile updates on your Followers page
Block a member from sending you private messages on the bottom of any message from them
Hide a forum thread by clicking the dropdown next to any topic (this also works for entire tags)
And next to any posting, you can hide a member's forum posts