Exactly.  Also, have they considered vanity sizing?  It's still technically possible that one of the XXXLs in the store is the equivalent of XXXXL for a smaller brand--wait, who am I kidding?  The people who are complaining about this are the people who already buy the largest brands possible. So much of their misery isn't even due to the primary cause but due to being delusional.  They don't think logically--this is a thrift store and a size as rare as theirs is unlikely to show up in it--so they see oppreshun.