For example with libogg he was primarily concerned that the world would get locked into proprietary video code that was patent encumbered. (An issue which has happened a number of times. For example at various points free software had trouble with patents on things like the compression algorithm used by the gif format, and the RSA algorithm used in encryption. Both are thankfully long expired now. But video encodings in particular have a ton of patent issues.)
For example with libogg he was primarily concerned that the world would get locked into proprietary video code that was patent encumbered. (An issue which has happened a number of times. For example at various points free software had trouble with patents on things like the compression algorithm used by the gif format, and the RSA algorithm used in encryption. Both are thankfully long expired now. But video encodings in particular have a ton of patent issues.)