1. IOC is corrupt
2. No longer limited to amateurs
3. Doping
4. No longer a test of one nation against another as athletes born in one country, train in another, and trained by someone from a third
5. Various forms of cheating such as gymnasts too young, athletes of questionable gender, biased judging, etc.
6. Men doing women's events like synchronized swimming
7. Celebration of gaiety at events like men's diving
8. Celebration of fornication by announcing how many condoms are being purchased for the Olympic village
9. Inclusion of events that make no sense such as golf
10. Bob Costas
Agree, good list. #10 is reason enough by itself.