nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqp450apv3j8jmqjct3ddfklzusxyfkkyqpzxx4p33u099xjzvfwwsjlkxk4 (nprofile…kxk4)
There's always iocain et. al.
(https://algorithmic-sabotage.github.io/asrg/trapping-ai/)
Putting something like that trained on source code behind your robots.txt will save you a lot of CPU (and maybe bandwidth). And if they complain, you can point to the robots.txt.