NES cleaning with rubbing alcohol

[BillyBoBob]

I've been wanting to join I-mockery for awhile now and now is as good a time as any because I have an actually problem that only the genuises here on the I-mockery forum can help me with. Anyway, I read recently on "Nintendo: The good, the bad, and the ugly" that gently dabbing the chip part of an NES game with a q-tip soaked in rubbing alcohol and then presumedly leaving it out to dry would make it work. However if you look on the back of an NES game you see this:
CAUTION
DO NOT STORE IN EXTREME TEMPERATURES.
DO NOT IMMERSE IN WATER.
DO NOT CLEAN WITH BENZENE, THINNER, ALCOHOL OR OTHER SUCH SOLVENTS.

As you can see, I'm torn between two sides. -ROG- and the back of the NES cartridge. What should I do?

[Chojin]

Clean it with rubbing alcohol. It's just copper.

[Girl Drink Drunk]

That or Q-tips with windex on it.

[Esuohlim]

Pfft, they put a disclaimer on so that you can buy their expensive cleaning kits. Alcohol works fine, better in my opinion.

[BillyBoBob]

I just tried out the alcohol and q-tips on a copy of BLASTER MASTER (FUCK YEAH!!!) and it works fine. Thanks.

[Girl Drink Drunk]

Glad to be of service.

[Esuohlim]

Haha we sure tricked you now your games are destroyed. High fives all around

[Girl Drink Drunk]

To evil!