I was not aware about this site. Very extensive collection of projects, but unfortunately hopelessly outdated. Some Dapps/games were abandoned since years (e.g. Aquashop, Hive-DB), but still listed.
I agree, it is too much work for one person to keep this updated.
A cheaper workaround would be to give the keys to this site to a bunch of active and trustworthy users and they could keep it updated way more easily.
No programming needed and the risk is low. If a mistake was made, one could always go back to a previous version (I guess at least that´s possible).
One could also create a revenue stream by requesting a "listing fee" from Dapps for being there.