Well I must say that the ZF CLA is horribly worded on the patent side and the bulk of people who signed it signed it because they trusted certain key people to not make them sign something evil. I consider the patent clause of the ZF CLA to be evil. So my conclusion is that those people who did sign should have tried to read and understand the CLA themselves. Now for the case of php core, you will find that much fewer people will be "blindly" signing it, because there are more people speaking up about the flip side of CLA's. The ethics of making people sign something like the ZF CLA on the false pretense that there is nothing to worry about "because evil patent trolls never go after lonely devs" is another story.
You of course are entitled to your own opinion about what is good and what is evil. However implying that people that do not agree with you on evilness of CLA are just stupid and aren't really able to read and understand things and didn't even try to read it is not very nice.
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Stanislav Malyshev, Zend Software Architect
stas@zend.com http://www.zend.com/
(408)253-8829 MSN: stas@zend.com