User Reputations in vb.org ON or OFF?

[Logician]

Dear vB.org Members,

We like to hear your opinions about turning on user reputations here in vb.org. We haven't decided about this yet but we are considering the issue. There can be pros and cons of turning them on and we like you to discuss them. Good karma can be useful to encourage our expert users to release more hacks, give support for their hacks or answer the questions of newbie users in our forum. On the other hand we don't want this be abused like bad karmas becoming a discouregement for some of our members. (For example a member can give bad karma in a hack thread when hacker does not reply his question and this can discourage hacker about sharing his other hacks in vb.org etc.)

So we can leave them as they are (off) or we can turn them on and give it a shot. Please give your 2 cents and we appreciate if you :
a) Consider the issue by regarding the characteristic of vb.org
b) Give your reasons while voting.

Thank you.