Serene–I’m signed in as a free member right now, and I have an “Edit” button on the right-hand side of the grey bar of my own posts. It seems to work fine for me. Is that button missing when you look at your old posts? Is the grey bar and the “reply” link still there? If you don’t see it, could you try signing out, closing your tab, then signing back in and coming back here to see if it’s back?