> That's the beauty of all this, everyone is welcome. If you can't see that, you've missed out on some important lessons in your decades of engineering work..
Not all ideas are equally valid. Socially-driven technology shifts are often not an improvement, yet they can change the industry we all work in. If mobile development is overrun by Rails developers -- and the engineering approaches they promote (often while ignoring history) -- the mobile development community (and the industry) will suffer.
I'm sorry but that's a super douchey thing to say. It's not like there's a limited number of "seats" in the iOS community room, and oh no you wouldn't want to waste some seats on web developers.
And who are you to speak for the iOS community?
There is room for everyone and anyone to join development communities and contribute as much or as little as they want. No one is forcing you to help anyone out if you think they're not smart or cool enough for your tastes.
That's the beauty of all this, everyone is welcome. If you can't see that, you've missed out on some important lessons in your decades of engineering work..