My wife is a lifelong migraine sufferer and these anti-CGRP drugs really seem to be working (fingers crossed). She'd literally tried everything and had given up. Virtual high-five to these researchers
Hadoop is much more than MapReduce. It's a fault tolerant, highly scalable file system where you can store a shitload (technical term) of data. That alone is remarkable.
Once your data is there, then you get your map/reduce on. And the best way to get started there is to look into Pig or Hive (high level map/reduce abstractions). Either of those will take you a long way.
I don't know anything about him and I don't care. I'm drawing a line between two extremes and talking about the extremes and the middle. If he's somewhere in the middle, that's great. I would just hate for people to get the message from a post like this that legal review is a waste of time. We deal with it every week of the year and it never ends like it did in this story.
Don't worry about competition. It's a good thing. It means you picked a good market. Focus on what makes you different and better.
Sounds like you may be a single founder. If so, find a friend or mentor who can help you work through the ups and downs. You're going to be discouraged a lot starting a business.
I went through a similar situation and solicited advice. Lots of people told me "know when to quit." I didn't, and I'm glad I stuck it out.
I paid a local law firm for a TOS once. It was not cheap, and after I received it, I had to manually edit out the remnants of an unfinished search/replace of another company's name.
One more anecdote: When my service went live, I put a free t-shirt offer deep in the TOS. Only had 1 person ever try to redeem the offer.