Criticism and self-criticism, pulling sleeves, red faces, and sweating are meant to make party members and comrades understand their own shortcomings.
Criticism and self-criticism are not in this name, but seem to be criticism but praise. It is not that I feel that it is a leader or a colleague, that I can't get by on my face, and that the criticism is not painful or itchy.
Criticism and self-criticism, we must wake up ourselves, accept criticism with an open mind, and improve it in our future work.
Of course, if you use this to make a personal attack, this kind of behavior must not be allowed.