Why is there no 'thumbs down' option here?
Would that be appreciated?
Once you hit 10,000 likes that you gave that's the end, no more points on that
BOO! unnecessary!! If there was only some other way I could show my displeasure with this topic.
I don't think it'd be good for the site. If a user reads a post s/he agrees with, s/he is likely to "like" it and then, if s/he feels s/he has anything to add, reply to it. If s/he sees one s/he doesn't like (or, in some cases, one posted by a user s/he doesn't like), s/he'd be more likely to click the "thumbs down" and move on - so perhaps it's better not to have one so as to encourage users to say why they disagree with a post and thus promote discussion.