There has never been a method to automate spray moderation. It's safe to say it's impossible.
Actually there was a server plugin that was made to moderate sprays upon getting sprayed to see if it triggered a anti-virus...
However, imo, i'd rather keep sprays disabled entirely anyways considering in the past alot of reports related to sprays were racism, anti- religion, cp, cub, loli, and such is just unwanted garbage on skial, i understand wanting sprays re-enabled, but that ain't happening till humanity stops getting into some of that weird shit they're interested in...
Final answer is no in reply to op, @
St3ve