I like it. Somebody contact me (info in profile) if they would like to explore this further.
And for $50 you could cancel the CancelMe service itself :)
file complaints with any number of credit card companies and collect statistics on the number of complaints vs. number of successful chargebacks by business, by CC company, and by industry. Sell the statistics. Use a pass-through form to handle the CC transaction, and be excruciatingly honest about how the process works.
Basically, act as an aggregator to get better leverage and provide convenience to individuals.
I can think of at least five other "cousins" of this idea. No matter how you do it, there's a big imbalance between providers and consumers -- and wherever there is an imbalance, there is economic opportunity.
Say, $10 to file and pursue any number of contested charges in one go. Stand-in for the consumer as contact and email them whenever their intervention is required (eg. limited power of attorney). Over time, develop statistics to either serve as positive ("99.9% of disputes amicably resolved without chargebacks") or negative (publish a list of the worst offenders and their average resolution times) reinforcement.
See also RescueTime :-) for examples of a service that extracts marginal revenue from aggregating data.