Each poster has a limited number of likes each day. That might be your issue.
He's at camp.Hi Freak,
That's not the problem I'm seeing.
If I go to the thread:
http://www.volnation.com/forum/politics/214347-who-will-win-2016-presidential-election.html
one user in that thread does not have the "like" button available on any of their posts, but all other posters do. That seems odd, but maybe there is a reason.