much of what you learn programming in an ide is how to program, but some of it is how to use the ide, and it's common for programmers to keep using the same ide for decades as a result

i still have some keybindings in emacs from when i used visual c++ last millennium, and i'm probably using emacs in significant part because i started using lugaru epsilon in about 01989. since then i've also used vi, vim, idea, eclipse, nedit, and the f83 editor, but i keep ending up back in emacs sort of by default. and i think my level of flexibility on this count is far above average

see https://news.ycombinator.com/item?id=41696512 for a more in-depth exploration of this