About using multiple accounts during rank PvP

If it’s one account per device then is there anything wrong with someone playing two or multiple accounts from different devices (given that they own the devices as well as the accounts)?
I understand that it’s unfair for someone to use multiple accounts during rank PvP to gain advantage in one device, but is it still a problem if they are not playing these accs on the same device?

Would be grateful if you didn’t ignore this question.

oh he replied in the other thread bro

Just saw
Mods can delete this thread ig

Note: other thread “is really dumb to remove someone from the leaderboard for account sharing.”