It says... This will get you onto PSN, but beware "Be aware that PS3 Firmware 4.46 uses a new CERT and this spoofer still has the old cert. As it is not risky enough going online with CFW, loading invalid data as a spoof is an even higher ban risk!"
If you did not understand, it means it uses an old cert possibly from 4.41. So you probably poke out like a sore thumb to sony going online ATM.