timebanks.orgは安全ですか？

This Organization is built upon sharing time instead of money so that we can assist each other in our day to day needs. In the "bank", we deposit time, and the time spent is the amount of time received. If you deposit 2 hours repairing someones computer, you can receive 2 hours of dental work for instance. Not necessarily from the same person. Anyone operating from a stance of sharing without agendas I trust.