The sentiment seems to have turned and most posters seem to support the Yahoo site. The consensus seems to be that the Yahoo site provides more Mainship specific answers to Mainship issues- construction, parts performance and engines.
All of this could be accomplished on the Mainship sub forum to Trawler Forum. So if someone posts a Mainship specific question here, try to help them out.
OTOH, no one defends the Yahoo site's performance. It is universally agreed- it sucks.