Yep, making progress with it, at memberapp.github.io - recently added blocking, down votes and ratings for users
Are downvotes needed for the reputation system?
They are more helpful for weeding out irrelevant or disagreeable posts, but a rep system might draw on any and all info
My only issue with downvotes is if they affect visibility of posts...
Well I think the approach of a website like Reddit is to De-emphasise downvoted posts rather than to hide them all together
btw, i like your suggestions on the Memo UI and improvements on Memo++ - I'd welcome any similar recommendations on improvements for the Member UI.