When you quote a person, it simply copies the code into the editor.

Yes, it simply copies the code into the editor and pastes "wrote".
This word is not translated and does not have space after user name.

Hello Romagromov,

I can't seems to replicate the issue in my local instance. Can you provide us with your Joomla backend and FTP access so we can check on the issue directly? Also do you use the latest version of easydiscuss? We just released a newer version of easydiscuss yesterday. Perhaps you might want to update it to the latest version and hopefully it will fix the issue.

Please advise.