容嬷嬷李公公

These words refer to popular historical drama characters that play strict guardians or attendants, typically in ancient settings. 'Elder Rong'(容嬷嬷) usually depicts a serious, caring yet stern nanny or governess whereas 'Uncle Li'(李公公) suggests eunuchs working in palaces. By choosing such names, the netizens tend to imply either a traditional, mature, or sometimes sarcastically authoritative image of themselves. Besides that, fans of related TV series would easily get attracted to these familiar characters. Overall it is a playful reference to classic figures in Asian historical dramas. It could also imply that the person likes history-related content.