How would cheating in a fighter even look like?..Auto combo-ing? Auto reponse?
Generally the cheat will do something like, read the input the server just said you did, and then send a faster move that will beat it. It can be a bit more obvious in SF6 because usually your best move against a heavy attack is a DI (drive impact) reaction, and cheats will be suspiciously consistent and inhumanly fast. Here’s a video from Diaphone that explains how he can tell.