Content already released, yes. The post says nothing about being able to make new things under 1.0a, which is where a lot of the nervousness comes in for people.
Sure, but "not being explicit" is very different than the way OP phrased it ("WoTC says in this post") -- it made me think I'd missed some explicit mention of it.
FWIW, I don't even believe they ever wanted to try to claw back e.g. the 3.5 SRD, so I'm not as concerned as other folk here. (But it's also clear that if they have no such intent, they'd need to make it legally binding for folk to trust them.)
FWIW, I don't even believe they ever wanted to try to claw back e.g. the 3.5 SRD, so I'm not as concerned as other folk here. (But it's also clear that if they have no such intent, they'd need to make it legally binding for folk to trust them.)