"said art curator" - there are not that many on nTOPAZ, and @siamcat could probably find out. On the other hand, this could be a blatant lie, considering that Jaguar was banned from nTOPAZ.
I was a art curator there myself, but found it was too much work filling out spreadsheets, and it interfered with my studio time, so I quit. Prominent? - now I am curious!
And why would a curator or moderator ask someone from the outside to do what they can do themselves? If you wanted to, you could join steemcleaners on Discord and file your own reports there. Anybody can do that. You can also file at other channels, like artzone. Who has the most filings on these channels? Just go there and see for yourself.