I vote for keeping rep. I like the personal messages attached. I dont look at rep totals
+1 from me.
I think it's a nice thing to rep a member for some good advice, a nice journal, a havest/completion - or even something that made me chuckle. I like to send and recieve a nice rep message.
I've been here quite a while & I'm not so fussed with the who did what and when, and know the systems not perfect - but given the choice of losing it and having it, i'd rather have it and see it as a nice thing.

I will feel sad for losing all my lovely history of rep messages if it goes ... but think that's about it.
..like a Hug in a Mug.