Planning and fomenting a revolution to overthrow the fascist takeover of the US government.

I’d say more like 20% more productive for most developers. Maybe it suits your coding style better than most?

Most of the time spent developing software isn’t writing code, but understanding the problem you’re trying to solve and translating that into an algorithm. I see more utility in generating tests, since a lot of developers don’t have good testing skills.

You don’t need to ask, just create it! You may need to use the web interface to do so. I’ve never tried to create a community using a mobile app.