Forum Moderators: rogerd
Is it advisable? Probably not. You can probably find a lot more productive use of your time than hand coding and copying every single message posted.
If you get half a dozen/day, you can probably keep on top of things. But what will you do when you get dozens or even hundreds of posts/day? It's much easier to start with a system than trying to migrate to one later on.
You should be able to easily customize and build SEO functionality into any off-the-shelf system (if not, just find another one that is easily customizable).
There are some forums that are Perl based and store the pages without a database.
One alternative for a low-volume community is to use a blog like WordPress. It has comment features and a variety of comment moderation methods. You could find or create a template that makes the comments as prominent as the original post as it would be in a forum.