Which alleged practice concerns you the most?

[botn]

1 (card altering) is not a problem if 2 (grading company incompetence) were not an even larger issue. The destruction associated with collectors and authorities recognizing grading company incompetence (intentional or accidental) has the potential to be more devastating to the hobby than any other problem that plagues the business. There is nothing remotely close posing a threat of this magnitude.

Were the grading companies to collapse and the hobby survived, card altering should be the practice that should be of the greatest concern to collectors. In my opinion, many collectors (the majority) could not tell if a card were altered given the quality of the work that is being performed these days.