After witnessing many of these discussions, it&#x27;s just FUD. Just because Emacs is older doesn&#x27;t mean that IntelliJ or Eclipse aren&#x27;t likely to follow you until retirement. Java hit critical mass a long time ago and both IDEs have mass adoption and are also OSS, as you mentioned.<p>The POV presented in that comment is basically a sales pitch. It&#x27;s too standardized and common not to be (it pops up in most of these threads).