Just a thought.
Wondering if I just tossed the grill plates in the oven and let it do a self-clean....kill 2 birds with one stone?
:pepper2:

I recently read an article (Mayo Clinic newsletter?) that stated the danger of cleaning your grill with a wire brush. Evidentially the little wires can stick to the grill and transfer to meat which will cause some serious trouble in the intestines. Who knew...... Anyway after I clean the grill with the above wire brush I spray a paper towel with Pam and rub the grill until I'm sure all those little thingees are gone. Just call me Heloise.:thumbup:

The OP asked who cleans not how to clean.
But, I am glad most people do clean their grill.

The home management companies could tell you who cleans grills for homes that are rentals, I rent my home (do not have a grill)but have seen a price list that includes an amount for cleaning grills.

ammonia and black garbage bag
 

I discxovered that if I put my grill or oven racks in a large black plastic bag with a cup of ammonia, tie it up, and let it sit in the sun all day, the goop slides right off with just a bit of brushing.