老毛病 is a very common, informal term used in a variety of everyday situations.
Describing Personal Flaws: This is the most frequent use. It can be used to complain about others or to make a self-deprecating comment about oneself.
Describing Mechanical or Technical Problems: It's perfect for describing a recurring issue with a machine, appliance, or piece of software.
Describing Systemic or Organizational Issues: The term can be scaled up to describe persistent problems in a company, institution, or even society.
The connotation is generally negative or complaining, but the tone is one of familiarity and resignation rather than shock or anger. It can be used humorously or sarcastically among friends.