recommended posts

What are recommended posts? unfortuantely I tried to respond to a post (reagrding increased subs I wanted to respond to someone saying that the increase was too much saying that $30 for 100's of hours entertainment is still extremely cheap). Unfortunately I had just got out of bed and pressed recommend (does this mean I have supported a post that I wanted to oppose? if so is there any way that I can undo this?

if you like a post, you recommend it. just click on the link. recs are counted (per post and per user), so you can think about the quality (hopefully) of the post.
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Yes, you did support a post you wanted to oppose. You can't undo it. Don't worry about it though. Rec's don't really count for anything. They aren't taken as votes or concensus.