The post discusses the nuances in terminology surrounding open-source software versus free and open-source software (FOSS). It highlights the importance of understanding the definitions and differences between open source and FOSS, as well as the implications of software licenses. The comments reflect a mix of support and dissent regarding the terminology. Key points include the significant philosophical and practical differences between merely having source code available and being able to modify or redistribute that code according to specific licenses. The discussion also emphasizes the necessity of clear language, proposing alternatives like "source available" to avoid confusion, particularly given that many users equate 'free' with no cost rather than the freedoms provided by free and open-source software.