Currently report of any type which has an opportunity view assigned will generate an opportunity count in the Report user table. this table is used as the source of data for the opportunity counts at the "Your Groups" level and currently does not exclude Info and Metric Reports as it should.
This bug makes the overall data quality scores inaccurate. We either need to exclude reports from the calculation based on type or we need to delete opportunity values when we change a report from Error to Info or Metric.
We'll definitely consider this in the new DQ cloud capability we are building