just to get trophies?
If so, it better be a very small minority of millenials, er, under 25 posters. I can't imagine people are posting with POTD votes in mind. Aren't sports fans supposed to be above that.
I choose to think people post because they are passionate and engaged and have something they feel is a meaningful contribution to the board. At least for OPs. Once you get into response threads then we are just having fun.