I think what this person is saying is "We already have words for a lot of these things so Eliezer and the other people who wrote the sequences are making up their own words for no reason."
In many cases, there's existing academic jargon that can take the place of the phrases Yudkowky uses.
The sequences would get more hits from search engines by using existing terms, LWers and other flavors of rationalists would be able to communicate more easily, and people would have to remember less terms overall if he just uses existing terms.
(Edit: added "and other people" to above sentence about making up unnecessary words for the sequences)
Example: Luminosity is a new word for the existing concept "self-awareness"
(Edit: "self-awarness" used to say "metacognition").
As you may have heard, the Singularity Institute is in the process of creating an official ebook version of The Sequences (specifically, Eliezer's Major Sequences written between 2006 and 2009).
Now is an opportune time to make any alterations to the contents of the Sequences. We're looking for suggestions about:
Put separate suggestions in separate comments so that specific changes can be discussed. All suggestions will be reviewed, with final changes made by Eliezer. Next thing you know, you'll be sipping a hot mocha in your favorite chair while reading about Death Spirals on your handy e-reader.
The Sequences that will be present in the ebook: