i realy like trophies system, but i think this needs some improvements.
One of my goals, is that users want to be online and visit my website every day so, why not reward that.
Why not to have:
A trophie for a user that visit and login every day;
A trophie for single post;
A trophie for single thread;
EDIT: and the option to hide this trophies, from the list.
Thanks for your hard work