To the matter at hand:
Achievement trophies .... for the love of God, no. This isn't fifth grade.
regardless of all the bitching about rep - and the lies of the cool kids that say they don't care about rep - it is, actually, a good rough indicators of a posters' overall approval level with respect to the quality and content of their posts and replies.
As far as i can see, the only problem is that the ratios are ridiculously high. I've been here four months and I'm over 6 million.
If you could find a way to keep the proportions, but reset the reps to a lower ratio - so, say, my 6, 198, 874 becomes 61, 988 (i think we can all get by with losing a few tail-end points) - that way reaching a mill becomes a good, laudable target, one that could then be rewarded with special privileges, a prize, a blow job, whatever .....