Okay, one last—I hope—feature inquiry from me. Jason's been incredibly helpful.
Client is asking if it'd be possible to introduce a delay before asking people to subscribe to the site, based on some number of pageviews. So, unregistered visitor reaches site, is allowed to view full content for let's say 5 entries, after which any further attempts to view entry pages presents the registration challenge. For reference, only entry pages are being protected. All index-type pages are free.
I don't really see anything in the various features that could obviously get repurposed into this and have the impression it'd involve entirely custom scripting(plus the API), but was curious if anyone had actually done it already or has ideas. We still haven't addressed the question of when this view-based trial expires, for example, allowing the visitor to get another free x views.
The search terms involved in rummaging through the forum are annoyingly wide, but I'll update here if I find anything interesting.