A very unique and meaningful project, but because of anonymity, i wondered if the system will be misused, such as the defamation.
Validated tips will be used in regards to those that have warrants out for them and did not show up for court. There won't be campaigns based on information that is not proven / spam. It will be up to the authorities to decide what tips are bogus and then counter checked by the civic group.
Since it is anonymous the information will not be available publicly. In regards to publishing info for campaigns, it will be published if there is validity and in that case it is already public knowledge.