Nothing brings people that play games together like a good contest of some kind.
If there were community contests where WE, were able to either do challenges playing online or solo, maybe even doing content creation.
things that are officially supported and promoted by the community.
An example of this would be creating the layout for a new map as some of us may have skill like that.
design for new zeds/freaks with detailed explanations etc.
something that either a team of players or again solo people could create, it gets voted by the community and if the devs are able to, add it into the game...... some restrictions would have to apply.