It seems to be an offensive, antisemitic symbol: https://en.wikipedia.org/wiki/Triple_parentheses
Triple parentheses or triple brackets, also known as an (((echo))), are an antisemitic symbol that has been used to highlight the names of individuals of a Jewish background, or organizations thought to be owned by Jews. The practice originated from the alt-right blog The Right Stuff; the blog's editors have explained that the symbol is meant to symbolize that the historic actions of Jews caused their surnames to "echo throughout history"
I didn't know about it earlier, but someone alerted me yesterday that it might cause problems.
The Department of Control has ability to censor partial words in nicknames and to force nickname changes of those containing illegal words.
I'd like to ask the Department of Justice to check this case, and decide whenever triple brackets should be censored or not. I personally have no opinion about it, but I don't want to hurt anybody's feelings.