Great info.

I see a lot of these in all my environments:

CREATE INDEX [missing_index_537_536_MSdistribution_history] ON [distribution].[dbo].[MSdistribution_history] ([agent_id],[time]) INCLUDE ([runstatus], [start_time], [timestamp])

Looks like replication needs some help, but fear would not let me add this!!! Anyone else seeing their distribution DB showing up also?