I have the HTC One. I also use the site version on my phone. I tried the mobile version and had the same problems.
The pages wouldn't load completely, it would stop after the first few threads appeared.
Eventually, it forced my logout and wouldn't let me login.
Pages still weren't loading completely, but partially the entire time. In the threads, only the first few comments would load too.
Never had these problems before today. The load time on the pages were fast, but just never continued to finish. The other sites I tried had no problems.