Under any system that allows a hive mind to decide on the content, certain ideas will proliferate across it.
Like system
A = +1000
A = +600
A = +500
A = +200
B = +10
It also allows for abuse of the system, where a vocal minority can manipulate the content to push their agenda. Take /r/SRS (non-redditors this is a sub-reddit that targets comments and posts that goes against their opinions and downvotes them). Applying the same concept but with "like" you could easily push your ideologies to the top.
The way the admins are handling it is by far the best approach. They are moderating the effect of the downvotes by the frequency of downvotes by the user. That way people who do abuse it, and downvote any opinions that they disagree with, won't make much effect.
You over simplifying the situation.
Under any system that allows a hive mind to decide on the content, certain ideas will proliferate across it.
Like system
A = +1000
A = +600
A = +500
A = +200
B = +10
It also allows for abuse of the system, where a vocal minority can manipulate the content to push their agenda. Take /r/SRS (non-redditors this is a sub-reddit that targets comments and posts that goes against their opinions and downvotes them). Applying the same concept but with "like" you could easily push your ideologies to the top.
The way the admins are handling it is by far the best approach. They are moderating the effect of the downvotes by the frequency of downvotes by the user. That way people who do abuse it, and downvote any opinions that they disagree with, won't make much effect.