Another purpose is for untrusted device/s as well. I recall LoyceV has LoyceMobile for that purpose.

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I am kind of considering making an alt from what happened to me here - Is there such thing as a malware that would make me automatically post?
But since the lockdown here in my country is really strict and I can't go around that much to make me able to use the forum in other locations, I am not even doing it yet.