Is a UK ISP filtering HN?

I had to post this by tethering my laptop to my phone and circumventing my home broadband provider, EE, which seems to be blocking HN. Perhaps the title is triggering some new and overzealous filter? The site has been inaccessible from my home for two or three days, but I can get at it from a US-based VPN and through my mobile data network. I'm not a networking expert and I don't know exactly what's going on, but here's the traceroute if anyone can help me prove or disprove what I suspect: http://titanpad.com/pC1Yyrl4H1 I'm a journalist, and if UK ISPs are involved in this level of filtering, I'm definitely going to write something about it. I've been Tweeting @EE, as well. I suppose it could turn out that somehow it's my fault I can't access the site through my broadband ISP, but I kinda doubt it.