I did wonder where my Like button had gone, but I automatically assumed it would be something todo with permissions. But that was only because of Kier's post in another thread stopping someone from "Like"ing other posts.
Is it intentional that the like button does not appear in "un-public" sections of the forum?
My wife noticed it was missing yersterday (fresh install of beta 6, running an import from the vBlech 4 database). My initial thought was that it could be due to the specific part of the board being non-public. It did appear in a public part of the forum, so that's what I figured caused it.