Although I've allowed it up until now, password sharing and logging into other users accounts is actually prohibited in our terms and conditions (section E).

From now on I will not be allowing this, as its causing issues.

If you want access to a subs account then get them to join your stable.

From there you can do most things, such as manage their block list, read their DMs and read their chat room messages.

Users logging into other users accounts will find their accounts suspended.

MoA.