Perhaps it would raise your hackles less if you read the Youtube comment as "improve video clarity at a particular file size", rather than how you presumably re

Perhaps it would raise your hackles less if you read the Youtube comment as "improve video clarity at a particular file size", rather than how you presumably read it as "improve video clarity [with no regard for how big the resulting file is]". I think the first comment is why they would position noise reduction as being both part of their compression and a way to improve video clarity.