REP Button vanished
Either I got selectively blind or I cant see teh rep button any more...?
Different parts of the site occasionally just fail to render. For me, maybe one time out of thirty it's the bar of edit choices above the edit box. I take it the rep button you are looking for is the little six-point star down by "Blog this post" below peoples' names/ awards/ etc? It's there for me. The fix when I don't see something is to log out, close browser, then reopen. Or even just swapping browsers will usually do it.
The rep is also limited on a per forum basis. For example, we recently disabled rep on the Cartographer' Choice forum as CLs were accidentally getting rep intended for the map's creators.