As far as I read the comment, it is pushing back on the idea that people who work at these companies are all amazing, and does so by saying there exist under-performing people. You are at some other extreme, and so are trying to read the comment as saying "anyone who has worked for FAANG" is under-performing, which is so far off from what the comment you responded to is saying as to be a bit comical... maybe, defensive? ;P (edit: oh wow I just noticed your other flagged comments--which is why I hadn't seen them before replying here--and it is clear you are just being irrationally angry today.)