Are you suggesting something like this table but for recreational and race boats?
A sticky thread at the top of the Sunk Boats forum would be good with limited details like name and date of incident. But it would need to be a Moderator only written thread or others would start discussion in there.
For it to be expanded with a bit of detail of the incident would take a fair bit of moderator work, and as they are not getting paid - and the Admins here appear scarce - it may be a hard ask.
An example: Bounty sank. Thats easy, it sank... But WHY it sank took 6 months to for the USCG to determine. (Funnily enough the thread on this form predicted each and every point brought out in the hearings and a summation of the thread could have been used as the reports fundings!)
In general, I think the new sunk, missing boat forum, when kept to one thread per incident, will provide an excellent resource in years to come.
Adding the date and vessel name to the subject box of the existing threads would be good too.
Indeed, I find some of the other forum users posts to be highly instructive and the good ones I read very carefully.