[Nadya]

>My biggest take away is that Hacker News is typically not my target market. I don't think I have ever converted HN user into a paying customer.

While "Capture full-size or full-height screenshots" is likely a large selling point for less-technical users, I would initially close the tab right after thinking it was yet-another-make-screenshotting-fullpage-websites-easier-tool for less technical users. The thinking for Firefox users probably goes "Why would I pay for `screenshot --fullpage`" or for many others, "Why would I pay for what is essentially Sharex?"

They likely ignore the automation parts of the service, because they aren't making it that far into your marketing:

>store them, serve them, and make sure they stay fresh and updated.

Just my $0.02 for why you probably don't get any HN users. I think your marketing is better as-is catering to either the less-technical crowds or the technical-crowds that make it far enough in your marketing than if you changed it to market towards technical people who make assumptions after reading one feature. :)