Tampermonkey script to add a new filter in the "gamersclub.com.br" lobby list, that allows you to ban countries depending on your preferences.
Install tampermonkey on your favorite browser (https://www.tampermonkey.net/)
Go to tampermonkey extension > dashboard > utilities > and paste url in to "Import from url section"
URL= https://raw.githubusercontent.com/cykvta/GCCountryBanList/master/CountryBanList.js