Better than disabling it:

• Understand it - low score boils down to "people don't want to see it". Everything else is assumption, and should be taken with a grain of salt.
• Deal with it - you won't be able to please everyone all the time.
• Vote - if you see some post/comment that you feel like undeservedly downvoted, by all means, upvote it.

I still wish that downvoting was multidimensional though. Negative feedback is important.