....
You've asked about security several times already and Tom has to repeat himself. What is it you're so worried about that hasn't been addressed? No one is looking through your capx files. No one is stealing your "code" on the cloud. And no you can't make a side business helping to export people's files.
You don't like the sub. You're not going to sub. But you're just rehashing the same security stuff because you're looking out for the interests of others who might buy it, who are more than capable of reading the T&C regarding security? Come on.
On topic of this thread: The point of C3 is an upgrade to C2. Different look, some new features, different support. It's not a demand to upgrade. Many of us kept using Unity 4.6 long after Unity 5. You don't have to upgrade, but if you do, you do it because you want the features that C3 has which may not be in C2.