Sure - there are some clips and teasers that are available with just the subscription, but pretty much everything is PPV content sent in DMs. For the most part, the bought videos are still visible after the subscription expires at least on the "purchases" page, but any non-paid DMs get deleted after a while - so for example, I had quite a few cases where I unlocked a video that turned out to be one I already had, but then got a new video after I asked if I could get something to replace it. But because those replacement videos weren't directly paid for, they've been deleted.
As for stopping my subscription, that was pretty much down to a lack of new videos - the same videos are recycled regularly, and old videos are advertised as new releases
