I cannot make the new .htaccess format work. My index file is index.html. How can I change .htaccess accordingly?
- so, your index file is NAMED index.html exactly? not index.php? If so, you just need to remove the line "RewriteRule ^index\.html$ ./index.php?mdrw=on".
As about not indexing user profile - we have did that because of: a) very many requests b) keeping user profiles private. Also, as another SEO maniacs, we could say - when you have many crosslinks around your site, it is also not really good. Search engine needs to index your document ONCE, and it will index it from the first page, going through these levels:
Links to topic listings -> Pagination -> Links to thread listings.
It is not difficult to get mod_rewrite URLs in user's profile back, but we doubt it is really necessary.
In general, ROBOTS tag function is extendable. In bb_plugins.php you may create your own version of $metaRobots variable, creating defineRobots() function, and define your own rules.