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In case anyone reading doesn't realize, Vim can do keyword completions. It isn't automatic, but out of the box, you can press ctrl+n to move through a list of possible completions.

Not as elegant as some IDEs I'm sure, but if typing is stopping you from using longer names, this could help.

Also, for IDE style completion:

https://github.com/ycm-core/YouCompleteMe

Vim has autocomplete too. This is not an argument about vim since I have seen vim users employing both conventions.

People confuse 'verbose' and 'clear'. Long names make my eyes glaze over as a reader.