I have a two year old site and I'm updating it, changing the theme, adding BBpress forums and Buddypress.
I've exported my site as a backup and preserved the database using a plugin and am working on the new site in a subdirectory.
My question is, when the time comes to build my new site is it better to start with a fresh installation and keep my posts by exporting and them importing them or is it better to preserve the old database?
What are the advantages / disadvantages of each method?
Ideally I like the idea of a fresh start as I know my database is bloated with residual code from old plugins I've tried but what are the drawbacks? I've never actually used the Export / Import facility so don't know if I will be losing anything in the process.
This has been bothering me for a few weeks now so I appreciate your input!