Closes #472

We do not address the finding directly. Rationale:

As it stands, we believe the suggested check wouldn't be meaningful. Only after receiving the config files would the participants need to verify the commitments, which happens outside of the tool; additionally, that requires the commitments which are not stored in the config file. We believe it also does not make sense to include the check for reference because that requires a broadcast channel which is complicated to setup. We decided to instead add warnings on the command line help and in the source code.