To me, it depends. I did subscribe to a lot of members of Active Rain. I enjoy reading their blogs, like what they have to say, and trust them if ever they re-blog. I'm not online all the time to read most of the posts. So sometimes I just click my subscriptions button to read blogs from the people I subscribed with, and if they have re-blog and I know I missed that original blog, I would definitely read it. Why? It's because if they liked the post and was good enough for them to take time to re-blog it, I'm sure I will like it too.
I also admire re-bloggers how they write and introduce the blog in the simplest term, for me, I think that's being respectful to the original writer. At the end of the blog, the re-blogger comes again and it says "please send your comment to the original post," and then disables the comment. Again for me, that's pure sincerity.
But then again, if they are doing it only to get points (I hope not), I will click next. Maybe they will lose my trust and my subscriptions. That's just me, how about you? Do you re-blog? Or should I say, do you read re-blog?