It’s definitely not as simple as it sounds and would need major engine and code changes, but I’m still hoping we’ll see this new addition added to OSRS and Alora down the line.
Omicron could fix this pretty quickly by either requiring new users to verify their email before they can post, or by limiting their ability to post links and images until they’ve gained x post count. Either option would only take a minute to enable in the forum’s admin control panel.