I just tried to reply to a comment from a user with the handle:

Ciro Santilli 六四事件 法轮功 纳米比亚 威视

When I typed @Ci the system autocompleted it for me, but when I finished the comment and pressed enter I got a big red box saying "Comments cannot contain that content". There was nothing unusual about the comment; I've written literally thousands upon thousands of them and never seen this. Removing the user name solved the issue.

This means it is impossible to respond via ping to that user.

  • 1
    On which site? There's a temporary blacklist of some Chinese characters on some sites due to a wave of Chinese spam. It's probably time to take it out. Commented Aug 10, 2015 at 11:59
  • @Gilles Unix & Linux
    – goldilocks
    Commented Aug 10, 2015 at 12:00
  • 1
    Have a look at this: How do comment @replies work? Specifically related is the "How do the names get matched?" section (Can't link directly, sorry)
    – James
    Commented Aug 10, 2015 at 13:01
  • 3
    The workaround given by rene isn't available for names that are entirely in Chinese... There isn't really a reason to blacklist Chinese in comments, which require 50 rep and may well contain someone's name written in their native language's characters.
    – user259867
    Commented Aug 10, 2015 at 16:42
  • @Norm I guess they put a low level patch for all "layers" - it was quick and dirty hack to stop a spam flood Commented Aug 11, 2015 at 12:12
  • 3
    @MarcGravell Why is this by design? Shouldn't the blacklist be removed? Commented Aug 11, 2015 at 13:33

1 Answer 1


That is caused by the spam prevention rules that got implemented on some sites due to the amount of spam with CJK characters.

You could work around the limitation to only use @CiroSantilli and remove the non-latin characters.

  • 1
    Yep, that worked.
    – goldilocks
    Commented Aug 10, 2015 at 12:11
  • 2
    Yup, and even @Cir is enough, /cc @gol Commented Aug 11, 2015 at 12:10

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