It's pretty hard to reach a conclusion on this issue without spending some (more than I'm willing to) time looking at the code. I'm not sure I like the claiming

It's pretty hard to reach a conclusion on this issue without spending some (more than I'm willing to) time looking at the code. I'm not sure I like the claiming of copyright on other implementations. I guess this is because they use a dual-licensing business model? Which would be understandable, but they should probably communicate that clearer.