What Do You Think Are The Niches That Have A Lot Of Spam Listings That Trigger Google’s Suspension?

In episode 244 of our weekly Hump Day Hangouts, one viewer asked about the niches that have a lot of spam listings that trigger Google's suspension.
The exact question was:
Based on your experience, what are the niches, in addition to Pest Control, that you believe Google thinks have a lot of spam listings and that Google may have a “”trigger finger”” for regarding their suspension tirade for just editing a listing. . . . Thanks again
