If the pix would be IN the posts I don't care how they get posted.
Unfortunately, having to open, view independantly, or open in a new window or tab, just makes helping harder if the pix are necessary to give good advice. Which is why I recommend and use photobucket.
Scrolling back and forth between a post w/ several imbedded pix and a reply window is plenty enough time consuming. Being able to view the text of a post (an opened attachment mostly covers the iboats forum window) and multiple pix all at once is how those asking for help to get it and get it from multiple different people.
Look thru the resto threads, topics w/ easily viewed pix get the most advice, IMO it's because it is less complicated for those giving advice to see what's going on w/ a project.
Good luck ID'ing the Mariner evil, hope it's a runner for ya