If everyone (lol its not going to happen) used trade chat for actual trading you could turn off shout on the trade tab and bingo you now eliminated Oly shouts and even dawn dusk spam if you turn that chat off too. Doubt everyone will get on board , but if you start now people might actually catch on who knows.... /discuss
No one outside Giran needs to hear you selling anything anyways why shout anymore, leave shout for **** talking.
Like anyone will actually listen.... way too many people are used to using ! to shout their sales, besides you also stop ALL other shout chat not jsut sales...
I would rather jsut see an option in the tab options to hide Oly manager shouts, like you can turn off all the other types of chat, give the oly manager it's own option to turn it off.
Its never going to change.
Use trade channel as was intended by the korean devs. If you dont like it, deal with the oly spam. No one cares, especially the devs.