[IMPORTANT!] Regarding HTTP Error 451

[1 Anonymous 2023/12/04(Mon) 10:05:59.05]

Recently, 5ch has been under attack by scripters and spammers. As a counter measure, (and because 5ch management is too retarded to put a CAPTCHA on this site) non-Japanese IPs can no longer post on any board on this site.
Which means boards made for foreigners such as dejima and the embassy ("8") boards have been now rendered useless.

If you wish to post, you can try using Tuxler with the residential VPN mode. You can also try SoftEther VPN Gate and try multiple Japanese IPs until you find one that isn't already banned.
If you wish to have a good experience on 5ch just like that of an ordinary 5ch user that lives in Japan, your only choice is to buy UPLIFT, though.
I don't think most people will want to give money to the terrible owners of this site though.

[2 Anonymous 2023/12/04(Mon) 10:06:22.36]

【重要事項】HTTPエラー451に関して

最近、5chはスクリプトに荒らされていま
す。対策として、（そして5chの運営がCAPTCHAの導入すらできない無能なため）非日本のIPからは、どの板にも書き込めなくなりました。dejimaや大使館板の外国人向けに作られた板は使う意味がなくなってることになっています。

書き込みたい場合はTuxlerのResidential VPNモードで日本サーバーに接続するとよいでしょう。筑波VPNでガチャを回して複数のサーバーを試して、まだBBx規制されてないIPを探すのもありでしょう。日本在住のごく平凡な5ch民みたいに5chを楽に使いたい場合はUPLIFTを買うしか選択肢はありません。
害悪ゴミカス過ぎる運営にお金出したくない人がほとんどと思いますけども。