according to someone (clearly)

Parentheses /pəˈrɛnθɨsz/ (singular, parenthesis /pəˈrɛnθɨsɨs/) (also called simply brackets, or round bracketscurved bracketsoval brackets, or, colloquially, parens/pəˈrɛnz/) contain material that could be omitted without destroying or altering the meaning of a sentence (in most writing, overuse of parentheses is usually a sign of a badly structured text)[according to whom?].

Humor from the humorless. (I think.)