Insofar as possible without heroic efforts, we should exclude bots and contributions by bots from all metrics.
Background
Previously in Grant Metrics, Participant filtering was required. But with the changes brought about by enabling Category filtering without Participants (T208546 and T205734), the system is likely to pick up bot contributions. We understand that excluding all bots would be impossible. But we will do what we can to eliminate obvious bots, and then see how big an issue is presented by any remaining automated contributors.