I think it should have both + and -. Also, you can rate only once and you can change it whenever.
I +1 you coz i like you 
No Nek popularity shows the size of your E-penis 
so it isnt pointless, it has a very useful purpose . lol
Idk I think a thanks meter would be better so you can only give thanks not take away
I like the idea that each person can vote once per person, but be able to switch it later. It would more accurately show popularity. The total count should be two separate counters to represent everyone. If it were combined, then it may display 0 despite many likes and dislikes for the person.
I have no popularity :’(
well, it could be worse, you could have negative popularity
I +1 you so you now have 2 rep 
Make that three
lol, 1’d sounds like a really dirty term…
:o
Ah yea
heh, i wonder who -1’d me ;D im sure its because i havent been on in a while
It goes up, it goes up, and it stops :>