Doing the best imitation of myself
I don't know that it's really a conspiracy theory. 4E is the last edition that I collected the books for. I used the offline character builder, and that was unofficially updated with every piece of errata as it came out. That was what convinced me that I really didn't need all of those books. I have heard that 4E was an edition that was patched like software. And for me, that really worked. When there were changes made, you would be able to automatically update them.One of the conspiracy theories of the day was that they were trying to force you to subscribe to DDI so your stuff would be automatically updated.