It's still summer time for many users of the site, so, maybe they're busy doing summer time things, like, outside and away from a computer
I'm no tech-head and in that regard no help for these specific q's about site behaviour, but I can say, in multiple browsers, with this account and a regular-user account for testing, I am able to log in, log out, click links on the main index page and any other page, post to threads, obviously, and I can access the "more" smiley list, so, I don't know what to say to you Peter and anyone else having issues accessing the site but I'll ask Admin about it.