Divine prices are arguably a time sink one way or another, because someone has to spend some time producing them and OSRS gold they operate out after a period of time. But you're right that they're not a cash sink, since while they do price, by purchase or opportunity cost, they don't get rid of any money from circulation.
This only benefits irons. Main account can just buy the unf. Same as osrs just irons use it but RuneScape should not be updated with irons in mind (half decent iron acc here also, this is not needed.
Just speeds an already speedy game). Realistically speaking, who's actually decanting on mainscape for gp? It's a process that is tedious. The work round is tight potion maker, but that relies on celestial charges. The actual play is to make Zahur cost a little more per cent therefore the opportunity cost never makes sense over partial potion manufacturer if mains wanted to use that to make gp over time. This then inflates the price of said items so it rebounds and leaves the profit margins more rewarding doing it manually.
It then becomes a win-win-win-win as now there is Buy Runescape gold a market stream of gp through individuals doing it normally for bigger margins, afk profits via partial potion makers via celestial charges (which exists), a tricky money spout + a staple cost point (Zahur), and herb prices move up as a larger quantity can be taken out from RuneScape instantaneous making general pvm more profitable. Yes it might benefit irons so, but this update is not just a game breaking change? It might be updated as a reward/benefit for completing the hard/eltie diaries for the desert.