No. No no no. The source code to the hashing algorithm means nothing. It is already open source! The reason that the salt is there is to prevent against rainb

No. No no no. The source code to the hashing algorithm means nothing. It is already open source! The reason that the salt is there is to prevent against rainbow tables. The salting did NOT become useless. If they had not salted passwords, then many many more passwords would have been broken because instead of having to brute force each and every one, you'd just look it up in a massively large hash table.