The blog post actually commented on this: > As I said, I am not only pro-copyleft, I am also pro-permissive licensing. The difference between these is tactics:

The blog post actually commented on this: > As I said, I am not only pro-copyleft, I am also pro-permissive licensing. The difference between these is tactics: the first tactic is towards guaranteeing user freedom, the second tactic is toward pushing adoption. I am generally pro-freedom, but sometimes pushing adoption is important, especially if you're pushing standards and the like. Outside of that situation: because they might give back changes to your software, even if they don't free the rest of the code. Of course, this might be a good argument for the LGPL.