Please, make 'Instant Buyout Only' the default option

Please, make 'Instant Buyout Only' the default option!
Or at least preserve my selection of the value in the combo box forever.

Every time I forget to change the option the only effect is that I see fake listings with low-ball prices from accounts that don't respond to whispers.

just should make it a setting at https://www.pathofexile.com/trade/settings