Software hoarding: Meaning (information, definition, explanation, facts)

Software hoarding is the creation of proprietary software products based on free software code. It results in software forking, interoperability problems leading to vendor lock-in, and limitation of knowledge. The practice of software hoarding was the impetus for the creation of copyleft. Software hoarding is legal unless restricted by copyleft or a similar license, but it is considered immoral by proponents of free software.