Sure, there is something to be said for reciprocating the generosity offered to you by taking only what you need.

I think this can become a complicated game of accounting though. Did Amazon take more than they need or did they just build a useful cloud service on top of a widespread open and free product that was released intentionally under those terms?

When Elastic chose the Apache license, what was the goal? Was it to allow as many people to benefit from the software as possible? If so, Amazon is clearly advancing that goal, not hindering it.

Or is the idea that Amazon is somehow blocking Elastic from competing in the cloud search space? Elastic is growing quite rapidly and Amazon's use of ES seems to have only accelerated that growth, so I don't really buy that either.

Furthermore consider this: Is Elastic reciprocating the generosity offered by Apache and the Lucene project, to which they basically did the same thing that Amazon did to them?

>I'm not expecting you to pull up a tour-bus full of tourists, move into it and use it as housing, or a sex den for turning tricks

But you should expecting that, you can't assume the listener will self-moderate.

Really? If someone comes over and you say "help yourself to anything in the fridge" you shouldn't expect that someone will take a snack and not clear out your fridge and load up there car with groceries for the week?

Yes I will expect that most people will not do that but some people will.

People are so diverse, I can't assume everybody behave the same, let alone behave the way I want.