The same reason Hacker News is better than /r/programming: lack of Redditors. Reddit has a hivemind, which transcends subreddits. You'll get the same bullshit circlejerks, pun threads, and cat gifs in almost every subreddit.
Seeing as those are still up and haven't been removed, I'm guessing the Coinbase app was removed for quality reasons. I used the thing and wasn't impressed. The experience wasn't great. Hopefully if they fix it up and resubmit the app, Apple will allow it back in.
I don't have a problem with doing this in general. I just have a problem with a company who's sole purpose is to make profit doing it.
If a non-profit organisation like Wikipedia started doing this, it'd be fine by me. Because they'd actually do it for the purpose of free information and not so they can just slap ads on it.
I think this may have happened to my MacBook Air 62 GB (Summer 2012). One day I booted up and nothing happened, just had a blank screen that never went away. I tried to use the internet restore and it couldn't find a drive. I then USB booted to Ubuntu and looked for the drive, but no drives were there.
Does this sound like the drive failure they're talking about? It happened a month ago and I haven't touched it since. I obviously can't run the firmware test they suggest, because my drive has already seemingly failed.
When I see code like this, I'm always amazed that I can actually read it and (kinda) understand what it's doing. I always expect code like Facebook's to be so finely tuned and advanced that it'd be completely uninteligable to those outside the company and not an expert in the language.