Whoever is in charge of security on this forum is doing a very poor job as the certificates are regularly running out. Apart from continually nagging them to sort it out there is not much we can do. All I can tell you is that I have never had any problems opening 'dodgy' pages.
And this forum (run by Jive) doesn't appear to work under Safari so the iPad is no good. I have been complaining to Sling for months about this but got sick of banging my head against a brick wall. Feel free to take up the cause