FH is in a rut. The Registration Closed, the Login Page, and the lack of new content has lead to many people losing interest.
tbh I'm close to just not even playing online anymore because of the login page, as a lot of people I know already have.
The only thing keeping me here is the map making, because I have always wanted to be a popular map maker in the community. But other than that, I have very little reason to log on. I'll go weeks without playing.
Many people have moved on to other games. I've seen hundreds of former FH players moving to games like WolfSoul and other IT servers, or moving onto another genre altogether, because FH just can't entertain them anymore. Other people have grown up and have jobs and families to focus on instead.
If FH can improve, it'll dig itself out of its rut.
If not, it'll stay in this rut, and eventually start dying out.
It isn't dying yet, though.