Interesting. Are vim on the CLI and Vim the gui program two separate things? (I actually used "MacVim" on MacOS for basic note taking in class since I could alt tab to it, but tended to do any script writing in vim on the cli.)
Anyways, my only customizations are usually to turn on line numbers and syntax highlighting... I also have sublime, but sometimes I find writing a script it can be helpful to just use a very simple editor, write out some psudocode with comments, then slowly build it out... it's easy to get distracted in a full blown IDE. (And I'd argue emacs or vim when heavily customized effectively become an IDE)