A member of Adobe staff did also say in the same thread that it would be most unlikely for Adobe to chase down anyone using the software though...

Agreed they do need to put out a coherent statement around what their intentions are - given the amount of noise this all seems to have generated, their best bet would be to simply announce it as generally free - it's not like they're going to be losing any sales on their current products as those who would have been in the market for them (ie: need to use the latest versions for work / compatibility reasons) will be buying those versions anyhow...