As this is a detection vector and fixed with v2.12.2 - the user should be warned if their HWID string is not authentic.
Additionally the HWID field should update whenever you change accounts if account bind is enabled
If length is not 0 or 64 when pressing "Set HWID" - issue a one-time warning that this will get the user potentially detected and why.
This check should be performed after the HWID has been validated.
If validation fails - the user should be told in the UI that his HWID is invalid.
As this is a detection vector and fixed with v2.12.2 - the user should be warned if their HWID string is not authentic. Additionally the HWID field should update whenever you change accounts if account bind is enabled