The key difference between POST and PUT & DELETE is idempotency. To quote wikipedia "This is a very useful property in many situations, as it means that an operation can be repeated or retried as often as necessary without causing unintended effects. With non-idempotent operations, the algorithm may have to keep track of whether the operation was already performed or not."
Read Fielding's dissertation please, or any distributed systems text on the basics of RPC. HTTP is for more than just CRUD websites.
What you have just said is one of the most insanely idiotic things I have ever heard. At no point in your rambling, incoherent response were you even close to anything that could be considered a rational thought. Everyone in this room is now dumber for having listened to it. I award you no points, and may God have mercy on your soul.
It seems like to me the problem is not that academia isn't interested in reliability, its just that they are solving the wrong problems. I am thinking about Byzantine Fault Tolerance specifically, as from what I understand it is a hot topic of research at the moment. That seems to me to be an example of academic research that is next to useless for practitioners.
BTW that quote is from Leslie Lamport, maybe its so obvious he didn't think it needed a credit.
