While dbcooper's comment mentions "No one cares", I believe that's specifically that employers don't care.

I believe that because dbcooper's comment was in response to your previous comment 'When you apply for a promotion and they ask ...' and your earlier 'If you're employed as a researcher...'.

No one disagrees with the anodyne statement that "people care". I know people who are not employed (eg, retired) and do peer review even though there is no possible career advancement involved.