Because it can be better designed, use common design / navigation patterns of your mobile OS, notify you when you get a reply, change the text size, change the theme, have richer animations, and allow you to automatically share content from other applications directly to HN?
Yeah. I'm just a bit averse to apps scraping data for the reasons you mentioned. It should have been the work of the mobile website, not an app. Speaking purely from the user's point of view (not the developer - I realize this is a community full of app developers) - one can't just keep installing apps for every website which is not mobile efficient yet. You all must have seen a lot of websites showing messages like "Welcome, we have an app, pess OK to install that, or Cancel to continue". Most of those websites don't do anything which a mobile website couldn't.
I agree with you in theory, but most mobile websites are poorly thought out and implemented - if at all. I definitely don't download apps for every site I use, but for the ones I use daily, I generally find I need to. Native OS interactions seem to be difficult to get right in the browser.
HN is definitely an example of a site that isn't ideal in a mobile browser. For instance, if you have the ability to downvote, it's incredibly easy to mistakenly downvote when you mean to upvote because how close and small the buttons are. There's other added functionality, like tracking who I've upvoted / downvoted in the past as well as tracking un/read comments when returning to a thread. In the browser, I use a chrome extension for this, and on my phone, I use airlocksoftware's app. (side-note, I wish said state carried between the extension and the app)
The developers of HN are surely capable of creating a mobile website that could work just as well, or even better than a mobile app. But currently, it's not ideal. And for that reason, I completely appreciate airlocksoftware's (and the devs of other HN apps) for their efforts.
