What are the consequences of overstaying my visa in Thailand by one day?

A user is concerned about overstaying their visa in Thailand by one day before departing for Australia. Many comments suggest that while there typically isn't a fine for a one-day overstay, an overstay stamp may be placed in the passport. Most respondents indicate that it usually doesn’t lead to serious consequences on future visits but recommend not making a habit of overstaying. Some advise notifying immigration in advance, as the treatment may depend on individual circumstances and interactions with officials.