I'm not forced, I quite like working on Vim. However I develop on a multi-app setup, 3 backend services and 4 npm based frontend apps with watchers and works running in background. RubyMine/Webstorm has a hard time keeping up and the memory usage shoots up to several gigabytes. As for Slack, I counted just now - the compressed memory usage is ~750MB! These things seem insignificant but do add up, especially with Chrome which itself takes a few gigabytes.