I try to add in a comment
It pops up an error.
Comments cannot contain that content.
I remove the last character
웃 and the comment was accepted without any problem...
He answers to my comment so I suppose it was notified, but the pop up didn't suggest me anything.
Should we say that "this is a bug" ?
Beyond this workaround (admitted that it works in all the cases), it exist any other way to do it, maybe via user number ?
I read this question about non latin characters in the nickname, "How to reply an user having name in non-English character?", but the solution proposed there (copy and paste the whole nickname) didn't allow at all to post the comment.
In the comment of that answer made by slhck is written Actually, to create a notification in the user's inbox, you only have to copy the first three characters Dec 8 '12 at 11:34.
So on one side I suppose it was at least notified, but on the other side I'm asking myself In general if there are 2 or more users with the same initial part of the nickname, to whom the comment will be notified?