While it seems time-saving, I don't think putting all your eggs in one basket is a good idea when it comes to interviewing. If you bomb the interview (it can happen to great engineers), then you've effectively shut yourself out of every YC company? I'd much rather interview 5 times and be 99% sure I'll get one, than go all or nothing and potentially get screwed.
It's more like "set your budgets accordingly". I run a couple sites there and only once I hit one quota limit for a site I did not set a budget and that exceeded the free tier bandwidth limit. I like it specially for students because it encourages good practices.
The amount a landlord should be willing to pay will be higher than this amount if your rent is substantially below the market rate, and lower if it’s only a little below the market rate.
...Why? I don't see how that conclusion follows from the data. The data only compared occupied vs unoccupied rent-controlled home sale prices. Nothing took into account how under-market said rents were. Unless I missed something...