The important part about even accepting a challenge of 100 reps in a set, you need to be fully aware that continuous use of a system like this will NOT build muscle. (anabolicsmall.com)
People can accept those challenges from me in a way that they might not from someone else. (rachelheldevans.com)
However, my thought is you can do more harm than help by accepting the challenge. (jibberjobber.com)