Yes, seems like SJIS is no longer displaying correctly. No idea why? I also saw that most of the Japanese corporate sites have also migrated from SJIS to UTF-8, so I'll be migrating the contents to UTF-8 since the sources are going to be in UTF-8 in the future.
For those with signatures in SJIS, sorry they won't display properly. You will need to re-type them in UTF-8 or convert~
For now, most of the displays have been dynamically converted to UTF-8. I'll update the data to UTF-8 soon.
@_@ <--- webmaster?