Coffee and RSI – relationship

A question on this FB group that I satarted: 

What do you think about coffee? I'm reading "The cafferine blues" and I've quit coffee ten days ago. I feel much less tired, although my pains are still there.

My response

A simple control experiment. I used to drink 5-6 cups of coffee (including two cups of tea) each day before the RSI cure I've outlined at http://rsicure.sabhlokcity.com/ and continue to drink so today. More than 12 years.

The only thing that has changed is the way I undertake the PHYSICAL cure. Plus I can work (both reading and writing – on the computer) at least 14 hours a day – at the level which "caused" the problem.

Coffee has many health benefits as well. 

My scientific conclusion (since there is a LOT of junk science in this world) – coffee has NO effect on RSI. 

Further, there should be a correlation between coffee drinkers (billions of people) and RSI. There isn't. It is ALL due to muscle tightening (micro-spasms).