[mlthoughts2018]

Most autocomplete tools I’ve worked with were very solid and well implemented.

I did not find them useful because autocompletion while writing code is itself just not a useful tool conceptually, regardless of the quality of the tool.

Autocompletion for coding just doesn’t have any mainstream use cases or situations in which it can possibly be helpful. As a result, even very well made autocompletion tools cause trouble and hinder productivity.

On the other hand there can be niche, non-mainstream uses, like accessibility use cases for disabled people who have to use key entry mechanisms that make non-autocompletion key entry overly burdensome or slow.