The latest blog entry from John Nack of Adobe You should never lose access to your work, period suggests a possible response to the “inert files” (my term) issue: loss of a subscription means loss of file access, which I deem unacceptable.
Your work is absolutely your property. Adobe fully agrees, and that’s why we’ve worked so hard over the years on things like the DNG standard (meant to ensure that your photos always stay readable), turning PDF into an ISO standard, etc.
There are solutions here, and we’ll work on sharing more details.
So to be fair to Adobe, let’s see what emerges on this front. I would be MUCH happier with a “snapshot” version at end of subscription that goes into read-only mode.
Still, it amazes me that such things are not thought about in advance: why poke the stick into the hornet’s nest in the first place?