I'm not looking at the IPs no, scrapers and such will not usually disco.  if they want to re-scrape data from months ago over and over uselessly, or an app has just gone wild after being put out to pasture and it's causing a REQ loop, they can make their pubkey known to the relay and use their allotment of REQs.  Workers such as blastr, is why I refer to assuming there are many IPs and it being somewhat useless to base your filtering on.