[Request] Opt out of the Echo buff via Duty Finder

[Kurando]

Besides, the problem often is even more annoying with people who play on PS4 and who don't have a keyboard...
They almost everytime have no idea on how to remove a buff (and I can't really help them myself).

You don't need a keyboard to remove a buff, and if things are lost in translation then no amount of peripherals can change that. In the mean time the only thing you can do is just try to explain it or put more restrictions on any parties you form so there is less issues.