If you look here, David, you will see the rules and an explanation of the various award functions.:
Terms and rules
But there is still work in progress, so I think it is possible some item definitions might change.
If you look under "members" for example, in the top bar, this has changed quite dramatically from the old format. It only shows something called "notable" members. This will undoubtedly change. At least three of the members shown there have not posted for about three years, and one other for two years, so I guess, for the moment, the Dbase has been carried over from something in the very original template.
I only noticed this as, under "Most likes", there is an old username which I used, and abandoned due to spamming from a couple of forums where I used the same name. ( "RAK"). I haven't actually used this for three years, on any forums.
As I said, it is still wip. For example, a point system is indeed shown.
I am not at all clear as to how points are awarded, or if it is even still operational.
P.S. I have to agree with your remark in #4. The trophy names are pretty silly - almost embarrassing! lol.