Reading your responses up on the thread, where people are also like: "Free my WhatsApp contacts" and your only response is: "Would you give me your username and password?", you're thinking about this in too basic a way.
Legal and safe ways to help users export their own data from other platforms could be the innovation of your entire company.
I might not give you username and password, but if you gave me an Electron app to run (with source code I could verify, executables for the newbies) that would read, using machine vision, certain websites, WhatsApp desktop app, etc. you could get a lot more data without breaking the TOS. Since it is I the user who is initiating the data transfer.
Legal and safe ways to help users export their own data from other platforms could be the innovation of your entire company.
I might not give you username and password, but if you gave me an Electron app to run (with source code I could verify, executables for the newbies) that would read, using machine vision, certain websites, WhatsApp desktop app, etc. you could get a lot more data without breaking the TOS. Since it is I the user who is initiating the data transfer.