It's one of the reasons I heavily use the HTML (hypertext markup language ;) <abbr> abbreviation tag [0]. I think it's useful for reminding the reader what the acronym/abbreviation/initialism means so they don't have to backtrack to where it was originally referenced. I know how it feels to read something with unknown abbreviations because I've read comments here on hackernews about machine learning.

[0]: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/ab...