<human>: Can you condense the text into three sentences or less?

In nearly every frontpage post recently, there has been a debate between Redditors about karma. Let's talk about the karma issue (1-3 are negative, the 4th is positive):

**(1.) Karma is destructive to intelligent discussion.**
While karma does eliminate spam, most people use karma to downvote opinions that they do not agree with. That completely undermines the entire point of open debate on Reddit.

**(2.) Karma serves no benefit for Redditors.**
There is no reward system on Reddit regarding karma. Redditors receive no benefit for karma and witty/intelligent comments (other than added confidence, perhaps). Since there's so much fuss about it, and it seems to get in the way a lot, why have it at all? That leads to my next point...

**(3.) Karma-inspired posts spam the frontpage.**
It seems that many of recent posts have been designed for upboats. It's nearly spamming the frontpage. I've handled this by unsubscribing to the subreddits that this occurs in most often (yes, I'm looking at you /r/pics), but this is somewhat unfair, as I am now unable to see the worthy frontpage posts because of the karma spam.

**(4.) Karma does, however, allow the best comments to rise to the top, adding humor and intelligent discussion at times.**
While the last three points have been negative, this is a positive aspect of karma. Karma allows us to vote witty/intelligent comments up to the top, which allows for better discussion.
<bot>: What do you think should be done about karma? Should it be completely removed? Or even modified? Is it worth the trouble? I'm looking forward to hearing your opinions! Thanks!