These days, many people prefer to complain by writing, especially on the internet. Online review sites are popular for this. It's easy: if you have a bad experience, you can share it quickly online. Lots of people use social media for complaints too. They share their problems and mention companies, looking for a solution. It's public, fast, and often gets faster responses from companies, so a lot of people like this way.

Most people usually complain by talking, often in casual conversations with friends or coworkers. It's common to see people casually talk about their problems, maybe during a coffee break or after work. This way, they can let off steam and get quick emotional support from others. Also, this kind of complaining helps create a feeling of togetherness and understanding, which is important for keeping good relationships and mental health.