[boramalper]

I’m not sure if CC is meant for software either (except for CC0 perhaps).

For instance, does non-commercial mean (1) you cannot use [the output of] the program for any commercial purposes, or does it mean (2) you cannot sell the program itself (and its derivatives).

The difference is subtle but AGPL permits (1) whilst practically forbidding (2) by enforcing copyleft; hence it fits the OSS criteria whereas CC NC wouldn’t if both (1) and (2) are true.

[detaro]

Creative Commons themselves say that CC licenses (outside CC0) are not designed and not recommended for software.