Do you think refactoring code adds value?

Pick one:

1. Hard No (Only refactor when there is a dollar value associated with it, i.e new feature depends on it).
2. Somewhat Yes (Futureproof your code, anticipate easiness to build feature requested in future).
3. Yes (Developer happiness, retention and for point 2)

So basically people in school were playing krunker.io, and shellshock.io in class. The school took notice and decided to "futureproof" their blockage. They basically blocked all io domains, because io domains are definitely all games. So yes, that's the story of how atom.io and every other io domain is blocked at my school

Question;
I have heard about Apache Hadoop for a while but never bothered to learn anything about it.
What can it be used for? Can I use it for hosting thousands of websites powered by php/hhvm?
I am starting to have a need for a really HA and High Performance solution that is futureproof too. My current solution is doing great also when it comes to performance and HA, but it is always nice to try out new things...

So the question is, can Hadoop be used in a hostingsolution?

Both the FAT32 and ISO9660 file systems have a 4 GB file size limitation due to storing file sizes as a 32-bit integer. However, the developers of ISO9660 had an idea that the geniusheads at Microsoft failed to think of.

ISO 9660, the first widely used file system on optical discs, bypasses its own 4 GB file size limit by supporting multiple entries for the same file! So a 12 GB file can be represented as three entries for the same file name.

This is what future-proofing looks like.
If only Microsoft had had (sic.) this idea for FAT32 (and FAT16).

Finding it hard to focus. I'm into UI, backend, frontend, iOS... Exploring FP. We've just had our first child and I need to put my time and energy into what will a) provide healthy financial remuneration b) be more enjoyable than frustrating c) be relatively futureproof (if that's even possible). For some reason I have a huge distaste for JavaScript (as an ecosystem) which has led me to look into Elm. I've enjoyed Ruby but something in my mind tells me Functional programming is more logical for me. It's a whole new approach and skill to level-up on. I love programming my own back-ends, but for me, design is so important and I want to be part of the visual, tangible part that people interact with. I'm a one-man operation which means I do design, full stack Development, client liaison, financials, client acquisition. Freelancing is a double edged sword - I don't know when the next project will come, but I also need to focus on the projects I have without taking too much on. At times I think employment would be good, despite having it's on drawbacks which I read about repeatedly on here. Any advice?