I 'liked' the previous like system, but I thought it was about liking a post, not the person posting it. I might disagree with someone - for example on a flatwound/woundwound, slapping/non-slapping or pick/fingers discussion, but that doesn't mean I think any less of the person.
When the 'like' option was replaced with the up/down arrows I thought it was a step backwards - especially if it keeps running total across all posts