I wonder how sales psychology might differ between a "lurker" subscription and an inexpensive limited plan? Lurker might have a more explicit "I think you're interesting and want to support/encourage you - thanks, we appreciate it" exchange. Or maybe defuse "but is it usable?" or "do I want to bother attempting to use it?" or yet-another-thing commitment concerns. Not "am I really going to use this?" but "does this look worth encouraging?". And maybe has a funnel story of "ok, now it's looking good, and I'll start using it for real... and not the mere limited plan". Sort of a patreon vibe, but blended with plans?