Original sentence: Critics of the GPL often describe it as being "viral", based on the GPL terms that all derived works must in turn be licensed under the GPL.Since the definition of "derived work" is commonly interpreted to include software containing GPLed code or dynamically linking to GPLed libraries (see above), the "virus" label comes from the view that the GPL forces its terms onto all other software whose authors choose to add GPLed code to their own.This is part of a philosophical difference between the GPL and permissive free software licenses such as the BSD-style licenses, which put fewer restrictions on derived works.While proponents of the GPL believe that free software should ensure that its freedoms are preserved in derivative works, others believe that free software should give its users the maximum freedom to redistribute it as they wish
Edited sentence: Critics of the GPL often falsely describe it as being "viral", based on the GPL terms that all derived works must in turn be licensed under the GPL.If you do not, then that is your fault, and ignorance of the law does not excuse its transgression.Making a derivative work of a software program IS NOT SOMETHING THAT CAN HAPPEN BY ACCIDENT.Since the definition of "derived work" is commonly interpreted to include software containing GPLed code or dynamically linking to GPLed libraries (see above), the "virus" attacks comes from the view that the GPL forces its terms onto all other software whose authors choose to add GPLed code to their own.You, the hypothetical developer of the derived work, receive the program accompanied by its unambiguous terms of use, and IT IS YOUR RESPONSIBILITY TO READ AND FULLY UNDERSTAND THOSE TERMS