Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
The scam that has been detected is especially notable in that it requires a lot of up-front capital: you have to have two high-graded copies of a sought-after book in order to make it work.
Source: https://comicbook.com/comics/news/cgc-comics-issues-statement-on-holder-tampering-controversy/