OK been doing a bit of troubleshooting just now. Just going to post the info.
I am on a Samsung Galaxy S6. Had been accessing through Samsung's basic "Internet" browser which had worked fine up until just recently.
Went ahead and tried on the Chrome browser. Still hangs.
Downloaded the Tapatalk app and followed SoSZ on there. Still hangs through Tapatalk.
A friend tried to access SoSZ using Safari on his iPhone (I don't know the exact model but it's a little on the old side). Hangs for him. He then tried on Chrome, still no luck.
The one thing our mobiles have in common is that they are both in South Korea. It's also worth noting that we both are able to access the site just fine via PC, and that kongming.net is also inaccessible by mobile for us - we get the same hang.
I'm not sure what to make of that.
Edit: Bit more information from him. Will just copy/paste.
I just switched my desktop Chrome to announce that it's an iPhone 6 and hit the site-- it loaded fine. Also tried it by pretending that I'm an Android phone running KitKat and it was also okay.
Sorry, edit 2:
I just turned on my VPN account on my iPhone and the site loaded with no issues whatsoever.
My friend and I use the same ISP in Korea so! I think that must be the culprit.