I agree with you that for the most party you don’t need to use any otp stuff in servers but people should also understand some of the awesome things you can do with it. Having an distributed cache(mnesia), tracking state real time without the need to hit a database in genservers. Also depending on the structure of your code you don’t “have” to take a performance hit. Running everything through a genserver…sure its going to be quite slow. spinning up a new genserver per “user”…your performance is probably still going to be pretty good and now you can track things in memory for users. Again I agree that you, 99% of the time you do not need to use anything otp related but when you are in that 1% its really a game changer that makes elixir as great as it is.
I for example heavily use otp things(mnesia,ets,supervisors,genservers) in a saas product I am working on and it has got to the point where I do not think I could get the same performance out of the box with any other language.
